1785                                  
                                                                            
                    INTRODUCTION TO THE METAPHYSIC OF MORALS                
                                                                            
                                by Immanuel Kant                            
                                                                            
                            translated by W. Hastie                         
                                                                            
                                                                            
                                                                            
                                                                            
DIVISIONS                                                                   
     GENERAL DIVISIONS OF THE METAPHYSIC OF MORALS                          
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  I. DIVISION OF THE METAPHYSIC OF MORALS AS A SYSTEM OF                    
                   DUTIES GENERALLY.                                        
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  1. All duties are either duties of right, that is, juridical              
duties (officia juris), or duties of virtue, that is, ethical duties        
(officia virtutis s. ethica). Juridical duties are such as may be           
promulgated by external legislation; ethical duties are those for           
which such legislation is not possible. The reason why the latter           
cannot be properly made the subject of external legislation is because      
they relate to an end or final purpose, which is itself, at the same        
time, embraced in these duties, and which it is a duty for the              
individual to have as such. But no external legislation can cause           
any one to adopt a particular intention, or to propose to himself a         
certain purpose; for this depends upon an internal condition or act of      
the mind itself. However, external actions conducive to such a              
mental condition may be commanded, without its being implied that           
the individual will of necessity make them an end to himself.               
  But why, then, it may be asked, is the science of morals, or moral        
philosophy, commonly entitled- especially by Cicero- the science of         
duty and not also the science of right, since duties and rights             
refer to each other? The reason is this. We know our own freedom- from      
which all moral laws and consequently all rights as well as all duties      
arise- only through the moral imperative, which is an immediate             
injunction of duty; whereas the conception of right as a ground of          
putting others under obligation has afterwards to be developed out          
of it.                                                                      
  2. In the doctrine of duty, man may and ought to be represented in        
accordance with the nature of his faculty of freedom, which is              
entirely supra-sensible. He is, therefore, to be represented purely         
according to his humanity as a personality independent of physical          
determinations (homo noumenon), in distinction from the same person as      
a man modified with these determinations (homo phenomenon). Hence           
the conceptions of right and end when referred to duty, in view of          
this twofold quality, give the following division:                          
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  DIVISION OF THE METAPHYSIC OF MORALS ACCORDING TO THE OBJECTIVE           
                  RELATION OF THE LAW OF DUTY.                              
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                         I. The Right of Humanity.                          
I. Juridical   Oneself     in our own person (juridicial                    
      Duties     to or     duties towards oneself)             Perfect      
                Others                                            Duty      
                        II. The Right of Mankind.                           
                            in others (juridical duties                     
                            towards others.)                                
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                       III. The End of Humanity.                            
II. Ethical   Oneself       in our person (eithical duties                  
     Duties     to or       towards oneself)                 Imperfect      
               Others                                             Duty      
                        IV. The End of Mankind.                             
                            in others (ethical duties                       
                            towards others.)                                
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  II. DIVISION OF THE METAPHYSIC OF MORALS ACCORDING TO RELATIONS           
                      OF OBLIGATION.                                        
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  As the subjects between whom a relation of right and duty is              
apprehended- whether it actually exists or not- admit of being              
conceived in various juridical relations to each other, another             
division may be proposed from this point of view, as follows:               
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  DIVISION POSSIBLE ACCORDING TO THE SUBJECTIVE RELATION OF                 
      THOSE WHO BIND UNDER OBLIGATIONS, AND THOSE WHO ARE                   
                 BOUND UNDER OBLIGATIONS.                                   
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  1. The juridical relation of man to beings who have neither right         
nor duty:                                                                   
  Vacat. There is no such relation, for such beings are irrational,         
and they neither put us under obligation, nor can we be put under           
obligation by them.                                                         
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  2. The juridical relation of man to beings who have both rights           
and duties:                                                                 
  Adest. There is such a relation, for it is the relation of men to         
men.                                                                        
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  3. The juridical relation of man to beings who have only duties           
and no rights:                                                              
  Vacat. There is no such relation, for such beings would be men            
without juridical personality, as slaves of bondsmen.                       
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  4 The juridical relation of man to a being who has only rights and        
no duties (God):                                                            
  Vacat. There is no such relation in mere philosophy, because such         
a being is not an object of possible experience.                            
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  A real relation between right and duty is therefore found, in this        
scheme, only in No. 2. The reason why such is not likewise found in         
No. 4 is because it would constitute a transcendent duty, that is, one      
to which no corresponding subject can be given that is external and         
capable of imposing obligation. Consequently the relation from the          
theoretical point of view is here merely ideal; that is, it is a            
relation to an object of thought which we form for ourselves. But           
the conception of this object is not entirely empty. On the                 
contrary, it is a fruitful conception in relation to ourselves and the      
maxims of our inner morality, and therefore in relation to practice         
generally. And it is in this bearing that all the duty involved and         
practicable for us in such a merely ideal relation lies.                    
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  III. DIVISION OF THE METAPHYSIC OF MORALS AS A SYSTEM OF                  
                     DUTIES GENERALLY.                                      
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  According to the constituent principles and the method of the             
system.                                                                     
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  I. Principles    I. Duties of Right        I. Private Right.              
                                             II. Public Right               
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                  II. Duties of Virtue, etc.                                
                      And so on, including all that                         
                      refers not only to the                                
                      materials, but also to the                            
                      architectonic form of a                               
                      scientific system of morals,                          
                      when the metaphysical                                 
                      investigation of the elements                         
                      has completely traced out the                         
                      universal principles constituting                     
                      the whole.                                            
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  II. Method       I. Didactics                                             
                  II. Ascetics                                              
                                                                            
INTRODUCTION_TO_THE_METAPHYSIC_OF_MORALS                                    
       GENERAL INTRODUCTION TO THE METAPHYSIC OF MORALS                     
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  I. THE RELATION OF THE FACULTIES OF THE HUMAN MIND TO THE                 
                        MORAL LAWS.                                         
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  The active faculty of the human mind, as the faculty of desire in         
its widest sense, is the power which man has, through his mental            
representations, of becoming the cause of objects corresponding to          
these representations. The capacity of a being to act in conformity         
with his own representations is what constitutes the life of such a         
being.                                                                      
  It is to be observed, first, that with desire or aversion there is        
always connected pleasure or pain, the susceptibility for which is          
called feeling. But the converse does not always hold; for there may        
be a pleasure connected, not with the desire of an object, but with         
a mere mental representation, it being indifferent whether an object        
corresponding to the representation exist or not. And second, the           
pleasure or pain connected with the object of desire does not always        
precede the activity of desire; nor can it be regarded in every case        
as the cause, but it may as well be the effect of that activity. The        
capacity of experiencing pleasure or pain on the occasion of a              
mental representation is called "feeling," because pleasure and pain        
contain only what is subjective in the relations of our mental              
activity. They do not involve any relation to an object that could          
possibly furnish a knowledge of it as such; they cannot even give us a      
knowledge of our own mental state. For even sensations,* considered         
apart from the qualities which attach to them on account of the             
modifications of the subject- as, for instance, in reference to red,        
sweet, and such like- are referred as constituent elements of               
knowledge to objects, whereas pleasure or pain felt in connection with      
what is red or sweet express absolutely nothing that is in the object,      
but merely a relation to the subject. And for the reason just               
stated, pleasure and pain considered in themselves cannot be more           
precisely defined. All that can be further done with regard to them is      
merely to point out what consequences they may have in certain              
relations, in order to make the knowledge of them available                 
practically.                                                                
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  *The sensibility as the faculty of sense may be defined by reference      
to the subjective nature of our representations generally. It is the        
understanding that fir refers the subjective representations to an          
object; it alone thinks anything by means of these representations.         
Now, the subjective nature of our representations might be of such a        
kind that they could be related to objects so as to furnish                 
knowledge of them, either in regard to their form or matter- in the         
former relation by pure perception, in the latter by sensation proper.      
In this case, the sense-faculty, as the capacity for receiving              
objective representations, would be properly called sense                   
perception. But mere mental representation from its subjective              
nature cannot, in fact, become a constituent of objective knowledge,        
because it contains merely the relation of the representations to           
the subject, and includes nothing that can be used for attaining a          
knowledge of the object. In this case, then, this receptivity of the        
mind for subjective representations is called feeling. It includes the      
effect of the representations, whether sensible or intellectual,            
upon the subject; and it belongs to the sensibility, although the           
representation itself may belong to the understanding or the reason.        
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  The pleasure which is necessarily connected with the activity of          
desire, when the representation of the object desired affects the           
capacity of feeling, may be called practical pleasure. And this             
designation is applicable whether the pleasure is the cause or the          
effect of the desire. On the other hand, that pleasure which is not         
necessarily connected with the desire of an object, and which,              
therefore, is not a pleasure in the existence of the object, but is         
merely attached to a mental representation alone, may be called             
inactive complacency, or mere contemplative pleasure. The feeling of        
this latter kind of pleasure is what is called taste. Hence, in a           
system of practical philosophy, the contemplative pleasure of taste         
will not be discussed as an essential constituent conception, but need      
only be referred to incidentally or episodically. But as regards            
practical pleasure, it is otherwise. For the determination of the           
activity of the faculty of desire or appetency, which is necessarily        
preceded by this pleasure as its cause, is what properly constitutes        
desire in the strict sense of the term. Habitual desire, again,             
constitutes inclination; and the connection of pleasure with the            
activity of desire, in so far as this connection is judged by the           
understanding to be valid according to a general rule holding good          
at least for the individual, is what is called interest. Hence, in          
such a case, the practical pleasure is an interest of the                   
inclination of the individual. On the other hand, if the pleasure           
can only follow a preceding determination of the faculty of desire, it      
is an intellectual pleasure, and the interest in the object must be         
called a rational interest; for were the interest sensuous, and not         
based only upon pure principles of reason, sensation would necessarily      
be conjoined with the pleasure, and would thus determine the                
activity of the desire. Where an entirely pure interest of reason must      
be assumed, it is not legitimate to introduce into it an interest of        
inclination surreptitiously. However, in order to conform so far            
with the common phraseology, we may allow the application of the            
term "inclination" even to that which can only be the object of an          
"intellectual" pleasure in the sense of a habitual desire arising from      
a pure interest of reason. But such inclination would have to be            
viewed, not as the cause, but as the effect of the rational                 
interest; and we might call it the non-sensuous or rational                 
inclination (propensio intellectualis). Further, concupiscence is to        
be distinguished from the activity of desire itself, as a stimulus          
or incitement to its determination. It is always a sensuous state of        
the mind, which does not itself attain to the definiteness of an act        
of the power of desire.                                                     
  The activity of the faculty of desire may proceed in accordance with      
conceptions; and in so far as the principle thus determining it to          
action is found in the mind, and not in its object it constitutes a         
power acting or not acting according to liking. In so far as the            
activity is accompanied with the consciousness of the power of the          
action to produce the object, it forms an act of choice; if this            
consciousness is not conjoined with it, the activity is called a wish.      
The faculty of desire, in so far as its inner principle of                  
determination as the ground of its liking or predilection lies in           
the reason of the subject, constitutes the will. The will is therefore      
the faculty of active desire or appetency, viewed not so much in            
relation to the action- which is the relation of the act of choice- as      
rather in relation to the principle that determines the power of            
choice to the action. It has, in itself, properly no special principle      
of determination, but in so far as it may determine the voluntary           
act of choice, it is the practical reason itself.                           
  Under the will, taken generally, may be included the volitional           
act of choice, and also the mere act of wish, in so far as reason           
may determine the faculty of desire in its activity. The act of choice      
that can be determined by pure reason constitutes the act of                
free-will. That act which is determinable only by inclination as a          
sensuous impulse or stimulus would be irrational brute choice               
(arbitrium brutum). The human act of choice, however, as human, is          
in fact affected by such impulses or stimuli, but is not determined by      
them; and it is, therefore, not pure in itself when taken apart from        
the acquired habit of determination by reason. But it may be                
determined to action by the pure will. The freedom of the act of            
volitional choice is its independence of being determined by                
sensuous impulses or stimuli. This forms the negative conception of         
the free-will. The positive conception of freedom is given by the fact      
that the will is the capability of pure reason to be practical of           
itself. But this is not possible otherwise than by the maxim of             
every action being subjected to the condition of being practicable          
as a universal law. Applied as pure reason to the act of choice, and        
considered apart from its objects, it may be regarded as the faculty        
of principles; and, in this connection, it is the source of                 
practical principles. Hence it is to be viewed as a law-giving              
faculty. But as the material upon which to construct a law is not           
furnished to it, it can only make the form of the form of the maxim of      
the act of will, in so far as it is available as a universal law,           
the supreme law and determining principle of the will. And as the           
maxims, or rules of human action derived from subjective causes, do         
not of themselves necessarily agree with those that are objective           
and universal, reason can only prescribe this supreme law as an             
absolute imperative of prohibition or command.                              
  The laws of freedom, as distinguished from the laws of nature, are        
moral laws. So far as they refer only to external actions and their         
lawfulness, they are called juridical; but if they also require             
that, as laws, they shall themselves be the determining principles          
of our actions, they are ethical. The agreement of an action with           
juridical laws is its legality; the agreement of an action with             
ethical laws is its morality. The freedom to which the former laws          
refer, can only be freedom in external practice; but the freedom to         
which the latter laws refer is freedom in the internal as well as           
the external exercise of the activity of the will in so far as it is        
determined by laws of reason. So, in theoretical philosophy, it is          
said that only the objects of the external senses are in space, but         
all the objects both of internal and external sense are in time;            
because the representations of both, as being representations, so           
far belong all to the internal sense. In like manner, whether               
freedom is viewed in reference to the external or the internal              
action of the will, its laws, as pure practical laws of reason for the      
free activity of the will generally, must at the same time be inner         
principles for its determination, although they may not always be           
considered in this relation.                                                
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     II. THE IDEA AND NECESSITY OF A METAPHYSIC OF MORALS.                  
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  It has been shown in The Metaphysical Principles of the Science of        
Nature that there must be principles a priori for the natural               
science that has to deal with the objects of the external senses.           
And it was further shown that it is possible, and even necessary, to        
formulate a system of these principles under the name of a                  
"metaphysical science of nature," as a preliminary to experimental          
physics regarded as natural science applied to particular objects of        
experience. But this latter science, if care be taken to keep its           
generalizations free from error, may accept many propositions as            
universal on the evidence of experience, although if the term               
"universal" be taken in its strict sense, these would necessarily have      
to be deduced by the metaphysical science from principles a priori.         
Thus Newton accepted the principle of the equality of action and            
reaction as established by experience, and yet he extended it as a          
universal law over the whole of material nature. The chemists go            
even farther, grounding their most general laws regarding the               
combination and decomposition of the materials of bodies wholly upon        
experience; and yet they trust so completely to the universality and        
necessity of those laws that they have no anxiety as to any error           
being found in propositions founded upon experiments conducted in           
accordance with them.                                                       
  But it is otherwise with moral laws. These, in contradistinction          
to natural laws, are only valid as laws, in so far as they can be           
rationally established a priori and comprehended as necessary. In           
fact, conceptions and judgements regarding ourselves and our conduct        
have no moral significance, if they contain only what may be learned        
from experience; and when any one is, so to speak, misled into              
making a moral principle out of anything derived from this latter           
source, he is already in danger of falling into the coarsest and            
most fatal errors.                                                          
  If the philosophy of morals were nothing more than a theory of            
happiness (eudaemonism), it would be absurd to search after principles      
a priori as a foundation for it. For however plausible it may sound to      
say that reason, even prior to experience, can comprehend by what           
means we may attain to a lasting enjoyment of the real pleasures of         
life, yet all that is taught on this subject a priori is either             
tautological, or is assumed wholly without foundation. It is only           
experience that can show what will bring us enjoyment. The natural          
impulses directed towards nourishment, the sexual instinct, or the          
tendency to rest and motion, as well as the higher desires of               
honour, the acquisition of knowledge, and such like, as developed with      
our natural capacities, are alone capable of showing in what those          
enjoyments are to be found. And, further, the knowledge thus                
acquired is available for each individual merely in his own way; and        
it is only thus he can learn the means by which be has to seek those        
enjoyments. All specious rationalizing a priori, in this connection,        
is nothing at bottom but carrying facts of experience up to                 
generalizations by induction (secundum principia generalia non              
universalia); and the generality thus attained is still so limited          
that numberless exceptions must be allowed to every individual in           
order that he may adapt the choice of his mode of life to his own           
Particular inclinations and his capacity for pleasure. And, after all,      
the individual has really to acquire his prudence at the cost of his        
own suffering or that of his neighbors the form                             
  But it is quite otherwise with the principles of morality. They           
lay down commands for every one without regard to his particular            
inclinations, and merely because and so far as he is free, and has a        
practical reason. Instruction in the laws of morality is not drawn          
from observation of oneself or of our animal nature, nor from               
perception of the course of the world in regard to what happens, or         
how men act.* But reason commands how we ought to act, even although        
no example of such action were to be found; nor does reason give any        
regard to the advantage which may accrue to us by so acting, and which      
experience could alone actually show. For, although reason allows us        
to seek what is for our advantage in every possible way, and although,      
founding upon the evidence of experience, it may further promise            
that greater advantages will probably follow on the average from the        
observance of her commands than from their transgression, especially        
if prudence guides the conduct, yet the authority of her precepts as        
commands does not rest on such considerations. They are used by reason      
only as counsels, and by way of a counterpoise against seductions to        
an opposite course, when adjusting beforehand the equilibrium of a          
partial balance in the sphere of practical judgement, in order thereby      
to secure the decision of this judgement, according to the due              
weight of the a priori principles of a pure practical reason.               
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  *This holds notwithstanding the fact that the term morals," in Latin      
mores, and in German sitten, signifies originally only manners or mode      
of life.                                                                    
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  Metaphysics designates any system of knowledge a priori that              
consists of pure conceptions. Accordingly, a practical philosophy           
not having nature, but the freedom of the will for its object, will         
presuppose and require a metaphysic of morals. It is even a duty to         
have such a metaphysic; and every man does, indeed, possess it in           
himself, although commonly but in an obscure way. For how could any         
one believe that he has a source of universal law in himself,               
without principles a priori? And just as in a metaphysics of nature         
there must be principles regulating the application of the universal        
supreme principles of nature to objects of experience, so there cannot      
but be such principles in the metaphysic of morals; and we will             
often have to deal objectively with the particular nature of man as         
known only by experience, in order to show in it the consequences of        
these universal moral principles. But this mode of dealing with             
these principles in their particular applications will in no way            
detract from their rational purity, or throw doubt on their a priori        
origin. In other words, this amounts to saying that a metaphysic of         
morals cannot be founded on anthropology as the empirical science of        
man, but may be applied to it.                                              
  The counterpart of a metaphysic of morals, and the other member of        
the division of practical philosophy, would be a moral anthropology,        
as the empirical science of the moral nature of man. This science           
would contain only the subjective conditions that hinder or favor           
the realization in practice of the universal moral laws in human            
nature, with the means of propagating, spreading, and strengthening         
the moral principles- as by the education of the young and the              
instruction of the people- and all other such doctrines and precepts        
founded upon experience and indispensable in themselves, although they      
must neither precede the metaphysical investigation of the                  
principles of reason, nor be mixed up with it. For, by doing so, there      
would be a great danger of laying down false, or at least very              
flexible moral laws, which would hold forth as unattainable what is         
not attached only because the law has not been comprehended and             
presented in its purity, in which also its strength consists. Or,           
otherwise, spurious and mixed motives might be adopted instead of what      
is dutiful and good in itself; and these would furnish no certain           
moral principles either for the guidance of the judgement or for the        
discipline of the heart in the practice of duty. It is only by pure         
reason, therefore, that duty can and must be prescribed.                    
  The higher division of philosophy, under which the division just          
mentioned stands, is into theoretical philosophy and practical              
philosophy. Practical philosophy is just moral philosophy in its            
widest sense, as has been explained elsewhere.* All that is                 
practicable and possible, according to natural laws, is the special         
subject of the activity of art, and its precepts and rules entirely         
depend on the theory of nature. It is only what is practicable              
according to laws of freedom that can have principles independent of        
theory, for there is no theory in relation to what passes beyond the        
determinations of nature. Philosophy therefore cannot embrace under         
its practical division a technical theory, but only a morally               
practical doctrine. But if the dexterity of the will in acting              
according to laws of freedom, in contradistinction to nature, were          
to be also called an art, it would necessarily indicate an art which        
would make a system of freedom possible like the system of nature.          
This would truly be a Divine art, if we were in a position by means of      
it to realize completely what reason prescribes to us, and to put           
the idea into practice.                                                     
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  *In the Critique of Judgement (1790).                                     
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         III. THE DIVISION OF A METAPHYSIC OF MORALS.                       
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  All legislation, whether relating to internal or external action,         
and whether prescribed a priori by mere reason or laid down by the          
will of another, involves two elements: First, a law which                  
represents the action that ought to happen as necessary objectively,        
thus making the action a duty; second, a motive which connects the          
principle determining the will to this action with the mental               
representation of the law subjectively, so that the law makes duty the      
motive of the action. By the first element, the action is                   
represented as a duty, in accordance with the mere theoretical              
knowledge of the possibility of determining the activity of the will        
by practical rules. By the second element, the obligation so to act is      
connected in the subject with a determining principle of the will as        
such. All legislation, therefore, may be differentiated by reference        
to its motive-principle.* The legislation which makes an action a           
duty, and this duty at the same time a motive, is ethical. That             
legislation which does not include the motive-principle in the law,         
and consequently admits another motive than the idea of duty itself,        
is juridical. In respect of the latter, it is evident that the motives      
distinct from the idea of duty, to which it may refer, must be drawn        
from the subjective (pathological) influences of inclination and of         
aversion, determining the voluntary activity, and especially from           
the latter; because it is a legislation which has to be compulsory,         
and not merely a mode of attracting or persuading. The agreement or         
non-agreement of an action with the law, without reference to its           
motive, is its legality; and that character of the action in which the      
idea of duty arising from the law at the same time forms the motive of      
the action, is its morality.                                                
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  *This ground of division will apply, although the action which it         
makes a duty may coincide with another action that may be otherwise         
looked at from another point of view. For instance, actions may in all      
cases be classified as external.                                            
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  Duties specially in accord with a juridical legislation can only          
be external duties. For this mode of legislation does not require that      
the idea of the duty, which is internal, shall be of itself the             
determining principle of the act of will; and as it requires a              
motive suitable to the nature of its laws, it can only connect what is      
external with the law. Ethical legislation, on the other hand, makes        
internal actions also duties, but not to the exclusion of the               
external, for it embraces everything which is of the nature of duty.        
And just because just because ethical legislation includes within           
its law the internal motive of the action as contained in the idea          
of duty, it involves a characteristic which cannot at all enter into        
the legislation that is external. Hence, ethical legislation cannot as      
such be external, not even when proceeding from a Divine will,              
although it may receive duties which rest on an external legislation        
as duties, into the position of motives, within its own legislation.        
  From what has been said, it is evident that all duties, merely            
because they are duties, belong to ethics; and yet the legislation          
upon which they are founded is not on that account in all cases             
contained in ethics. On the contrary, the law of many of them lies          
outside of ethics. Thus ethics commands that I must fulfil a promise        
entered into by contract, although the other party might not be able        
to compel me to do so. It adopts the law (pacta sunt servanda) and the      
duty corresponding to it, from jurisprudence or the science of              
right, by which they are established. It is not in ethics,                  
therefore, but in jurisprudence, that the principle of the legislation      
lies, that "promises made and accepted must be kept." Accordingly,          
ethics specially teaches that if the motive-principle of external           
compulsion which juridical legislation connects with a duty is even         
let go, the idea of duty alone is sufficient of itself as a motive.         
For were it not so, and were the legislation itself not juridical, and      
consequently the duty arising from it not specially a duty of right as      
distinguished from a duty of virtue, then fidelity in the                   
performance of acts, to which the individual may be bound by the terms      
of a contract, would have to be classified with acts of benevolence         
and the obligation that underlies them, which cannot be correct. To         
keep one's promise is not properly a duty of virtue, but a duty of          
right, and the performance of it can be enforced by external                
compulsion. But to keep one's promise, even when no compulsion can          
be applied to enforce it, is, at the same time, a virtuous action, and      
a proof of virtue. jurisprudence as the science of right, and ethics        
as the science of virtue, are therefore distinguished not so much by        
their different duties, as rather by the difference Of the legislation      
which connects the one or the other kind of motive with their laws.         
  Ethical legislation is that which cannot be external, although the        
duties it prescribes may be external as well as internal. Juridical         
legislation is that which may also be external. Thus it is an external      
duty to keep a promise entered into by contract; but the injunction to      
do this merely because it is a duty, without regard to any other            
motive, belongs exclusively to the internal legislation. It does not        
belong thus to the ethical sphere as being a particular kind of duty        
or a particular mode of action to which we are bound- for it is an          
external duty in ethics as well as in jurisprudence- but it is because      
the legislation in the case referred to is internal, and cannot have        
an external lawgiver, that the obligation is reckoned as belonging          
to ethics. For the same reason, the duties of benevolence, although         
they are external duties as obligations to external actions, are, in        
like manner, reckoned as belonging to ethics, because they can only be      
enjoined by legislation that is internal. Ethics has no doubt its           
own peculiar duties- such as those towards oneself- but it bas also         
duties in common with jurisprudence, only not under the same mode of        
obligation. In short, the peculiarity of ethical legislation is to          
enjoin the performance of certain actions merely because they are           
duties, and to make the principle of duty itself- whatever be its           
source or occasion- the sole sufficing motive of the activity of the        
will. Thus, then, there are many ethical duties that are directly           
such; and the inner legislation also makes the others- all and each of      
them- indirectly ethical.                                                   
  The deduction of the division of a system is the proof of its             
completeness as well as of its continuity, so that there may be a           
logical transition from the general conception divided to the               
members of the division, and through the whole series of the                
subdivisions without any break or leap in the arrangement (divisio per      
saltum). Such a division is one of the most difficult conditions for        
the architect of a system to fulfil. There is even some doubt as to         
what is the highest conception that is primarily divided into right         
and wrong (aut fas aut nefas). It is assuredly the conception of the        
activity of the free-will in general. In like manner, the expounders        
of ontology start from something and nothing, without perceiving            
that these are already members of a division for which the highest          
divided conception is awanting, and which can be no other than that of      
thing in general.                                                           
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     IV. GENERAL PRELIMINARY CONCEPTIONS DEFINED AND EXPLAINED.             
              (Philosophia practica universalis).                           
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  The conception of freedom is a conception of pure reason. It is           
therefore transcendent in so far as regards theoretical philosophy;         
for it is a conception for which no corresponding instance or               
example can be found or supplied in any possible experience.                
Accordingly freedom is not presented as an object of any theoretical        
knowledge that is possible for us. It is in no respect a constitutive,      
but only a regulative conception; and it can be accepted by the             
speculative reason as at most a merely negative principle. In the           
practical sphere of reason, however, the reality of freedom may be          
demonstrated by certain practical principles which, as laws, prove a        
causality of the pure reason in the process of determining the              
activity of the will that is independent of all empirical and sensible      
conditions. And thus there is established the fact of a pure will           
existing in us as the source of all moral conceptions and laws.             
  On this positive conception of freedom in the practical relation          
certain unconditional practical laws are founded, and they specially        
constitute moral laws. In relation to us as human beings, with an           
activity of will modified by sensible influences so as not to be            
conformable to the pure will, but as often contrary to it, these            
laws appear as imperatives commanding or prohibiting certain                
actions; and as such they are categorical or unconditional                  
imperatives. Their categorical and unconditional character                  
distinguishes them from the technical imperatives which express the         
prescriptions of art, and which always command only conditionally.          
According to these categorical imperatives, certain actions are             
allowed or disallowed as being morally possible or impossible; and          
certain of them or their opposites are morally necessary and                
obligatory. Hence, in reference to such actions, there arises the           
conception of a duty whose observance or transgression is                   
accompanied with a pleasure or pain of a peculiar kind, known as moral      
feeling. We do not, however, take the moral feelings or sentiments          
into account in considering the practical laws of reason. For they          
do not form the foundation or principle of practical laws of reason,        
but only the subjective effects that arise in the mind on the occasion      
of our voluntary activity being determined by these laws. And while         
they neither add to nor take from the objective validity or                 
influence of the moral laws in the judgement of reason, such                
sentiments may vary according to the differences of the individuals         
who experience them.                                                        
  The following conceptions are common to jurisprudence and ethics          
as the two main divisions of the metaphysic of morals.                      
  Obligation is the necessity of a free action when viewed in relation      
to a categorical imperative of reason. An imperative is a practical         
rule by which an action, otherwise contingent in itself, is made            
necessary. It is distinguished from a practical law in that such a          
law, while likewise representing the action as necessary, does not          
consider whether it is internally necessary as involved in the              
nature of the agent- say as a holy being- or is contingent to him,          
as in the case of man as we find him; for where the first condition         
holds good, there is in fact no imperative. Hence an imperative is a        
rule which not only represents but makes a subjectively contingent          
action necessary; and it, accordingly, represents the subject as being      
(morally) necessitated to act in accordance with this rule. A               
categorical or unconditional imperative is one which does not               
represent the action in any way immediately through the conception          
of an end that is to be attained by it; but it presents the action          
to the mind as objectively necessary by the mere representation of its      
form as an action, and thus makes it necessary. Such imperatives            
cannot be put forward by any other practical science than that which        
prescribes obligations, and it is only the science of morals that does      
this. All other imperatives are technical, and they are altogether          
conditional. The ground of the possibility of categorical                   
imperatives lies in the fact that they refer to no determination of         
the activity of the will by which a purpose might be assigned to it,        
but solely to its freedom.                                                  
  Every action is allowed (licitum) which is not contrary to                
obligation; and this freedom not being limited by an opposing               
imperative, constitutes a moral right as a warrant or title of              
action (facultas moralis). From this it is at once evident what             
actions are disallowed or illicit (illicita).                               
  Duty is the designation of any action to which anyone is bound by an      
obligation. It is therefore the subject-matter of all obligation. Duty      
as regards the action concerned may be one and the same, and yet we         
may be bound to it in various ways.                                         
  The categorical imperative, as expressing an obligation in respect        
to certain actions, is a morally practical law. But because obligation      
involves not merely practical necessity expressed in a law as such,         
but also actual necessitation, the categorical imperative is a law          
either of command or prohibition, according as the doing or not             
doing of an action is represented as a duty. An action which is             
neither commanded nor forbidden is merely allowed, because there is no      
law restricting freedom, nor any duty in respect of it. Such an action      
is said to be morally indifferent (indifferens, adiaphoron, res             
merae facultatis). It may be asked whether there are such morally           
indifferent actions; and if there are, whether in addition to the           
preceptive and prohibitive law (lex praeceptiva et prohibitiva, lex         
mandati et vetiti), there is also required a permissive law (lex            
permissiva), in order that one may be free in such relations to act,        
or to forbear from acting, at his pleasure? If it were so, the moral        
right in question would not, in all cases, refer to actions that are        
indifferent in themselves (adiaphora); for no special law would be          
required to establish such a right, considered according to moral           
laws.                                                                       
  An action is called an act- or moral deed- in so far as it is             
subject to laws of obligation, and consequently in so far as the            
subject of it is regarded with reference to the freedom of his              
choice in the exercise of his will. The agent- as the actor or doer of      
the deed- is regarded as, through the act, the author of its effect;        
and this effect, along with the action itself, may be imputed to            
him, if be previously knew the law in virtue of which an obligation         
rested upon him.                                                            
  A person is a subject who is capable of having his actions imputed        
to him. Moral personality is, therefore, nothing but the freedom of         
a rational being under moral laws; and it is to be distinguished            
from psychological freedom as the mere faculty by which we become           
conscious of ourselves in different states of the identity of our           
existence. Hence it follows that a person is properly subject to no         
other laws than those he lays down for himself, either alone or in          
conjunction with others.                                                    
  A thing is what is incapable of being the subject of imputation.          
Every object of the free activity of the will, which is itself void of      
freedom, is therefore called a thing (res corporealis).                     
  Right or wrong applies, as a general quality, to an act (rectum           
aut minus rectum), in so far as it is in accordance with duty or            
contrary to duty (factum licitum aut illicitum), no matter what may be      
the subject or origin of the duty itself. An act that is contrary to        
duty is called a transgression (reatus).                                    
  An unintentional transgression of a duty, which is, nevertheless,         
imputable to a person, is called a mere fault (culpa). An                   
intentional transgression- that is, an act accompanied with the             
consciousness that it is a transgression- constitutes a crime (dolus).      
  Whatever is juridically in accordance with external laws is said          
to be just (jus, instum); and whatever is not juridically in                
accordance with external laws is unjust (unjustum).                         
  A collision of duties or obligations (collisio officiorum s.              
obligationum) would be the result of such a relation between them that      
the one would annul the other, in whole or in part. Duty and                
obligation, however, are conceptions which express the objective            
practical necessity of certain actions, and two opposite rules              
cannot be objective and necessary at the same time; for if it is a          
duty to act according to one of them, it is not only no duty to act         
according to an opposite rule, but to do so would even be contrary          
to duty. Hence a collision of duties and obligations is entirely            
inconceivable (obligationes non colliduntur). There may, however, be        
two grounds of obligation (rationes obligandi), connected with an           
individual under a rule prescribed for himself, and yet neither the         
one nor the other may be sufficient to constitute an actual obligation      
(rationes obligandi non obligantes); and in that case the one of            
them is not a duty. If two such grounds of obligation are actually          
in collision with each other, practical philosophy does not say that        
the stronger obligation is to keep the upper hand (fortior obligatio        
vincit), but that the stronger ground of obligation is to maintain its      
place (fortior obligandi ratio vincit).                                     
  Obligatory Laws for which an external legislation is possible are         
called generally external laws. Those external laws, the                    
obligatoriness of which can be recognised by reason a priori even           
without an external legislation, are called natural laws. Those             
laws, again, which are not obligatory without actual external               
legislation, are called positive laws. An external legislation,             
containing pure natural laws, is therefore conceivable; but in that         
case a previous natural law must be presupposed to establish the            
authority of the lawgiver by the right to subject others to obligation      
through his own act of will.                                                
  The principle which makes a certain action a duty is a practical          
law. The rule of the agent or actor, which he forms as a principle for      
himself on subjective grounds, is called his maxim. Hence, even when        
the law is one and invariable, the maxims of the agent may yet be very      
different.                                                                  
  The categorical imperative only expresses generally what constitutes      
obligation. It may be rendered by the following formula: "Act               
according to a maxim which can be adopted at the same time as a             
universal law." Actions must therefore be considered, in the first          
place, according to their subjective principle; but whether this            
principle is also valid objectively can only be known by the criterion      
of the categorical imperative. For reason brings the principle or           
maxim of any action to the test, by calling upon the agent to think of      
himself in connection with it as at the same time laying down a             
universal law, and to consider whether his action is so qualified as        
to be fit for entering into such a universal legislation.                   
  The simplicity of this law, in comparison with the great and              
manifold consequences which may be drawn from it, as well as its            
commanding authority and supremacy without the accompaniment of any         
visible motive or sanction, must certainly at first appear very             
surprising. And we may well wonder at the power of our reason to            
determine the activity of the will by the mere idea of the                  
qualification of a maxim for the universality of a practical law,           
especially when we are taught thereby that this practical moral law         
first reveals a property of the will which the speculative reason           
would never have come upon either by principles a priori, or from           
any experience whatever; and even if it had ascertained the fact, it        
could never have theoretically established its possibility. This            
practical law, however, not only discovers the fact of that property        
of the will, which is freedom, but irrefutably establishes it. Hence        
it will be less surprising to find that the moral laws are                  
undemonstrable, and yet apodeictic, like the mathematical                   
postulates; and that they, at the same time, open up before us a whole      
field of practical knowledge, from which reason, on its theoretical         
side, must find itself entirely excluded with its speculative idea          
of freedom and all such ideas of the supersensible generally.               
  The conformity of an action to the law of duty constitutes its            
legality; the conformity of the maxim of the action with the law            
constitutes its morality. A maxim is thus a subjective principle of         
action, which the individual makes a rule for himself as to how in          
fact he will act.                                                           
  On the other hand, the principle of duty is what reason                   
absolutely, and therefore objectively and universally, lays down in         
the form of a command to the individual, as to how he ought to act.         
  The supreme principle of the science of morals accordingly is             
this: "Act according to a maxim which can likewise be valid as a            
universal law." Every maxim which is not qualified according to this        
condition is contrary to Morality.                                          
  Laws arise from the will, viewed generally as practical reason;           
maxims spring from the activity of the will in the process of               
choice. The latter in man is what constitutes free-will. The will           
which refers to nothing else than mere law can neither be called            
free nor not free, because it does not relate to actions                    
immediately, but to the giving of a law for the maxim of actions; it        
is therefore the practical reason itself. Hence as a faculty, it is         
absolutely necessary in itself, and is not subject to any external          
necessitation. It is, therefore, only the act of choice in the              
voluntary process that can be called free.                                  
  The freedom of the act of will, however, is not to be defined as a        
liberty of indifference (libertas indifferentae), that, is, as a            
capacity of choosing to act for or against the law. The voluntary           
process, indeed, viewed as a phenomenal appearance, gives many              
examples of this choosing in experience; and some have accordingly          
so defined the free-will. For freedom, as it is first made knowable by      
the moral law, is known only as a negative property in us, as               
constituted by the fact of not being necessitated to act by sensible        
principles of determination. Regarded as a noumenal reality,                
however, in reference to man as a pure rational intelligence, the           
act of the will cannot be at all theoretically exhibited; nor can it        
therefore be explained how this power can act necessitatingly in            
relation to the sensible activity in the process of choice, or              
consequently in what the positive quality of freedom consists. Only         
thus much we can see into and comprehend, that although man, as a           
being belonging to the world of sense, exhibits- as experience              
shows- a capacity of choosing not only conformably to the law but also      
contrary to it, his freedom as a rational being belonging to the world      
of intelligence cannot be defined by reference merely to sensible           
appearances. For sensible phenomena cannot make a super-sensible            
object- such as free-will is- intelligible; nor can freedom ever be         
placed in the mere fact that the rational subject can make a choice in      
conflict with his own law-giving reason, although experience may prove      
that it happens often enough, notwithstanding our inability to              
conceive how it is possible. For it is one thing to admit a                 
proposition as based on experience, and another thing to make it the        
defining principle and the universal differentiating mark of the act        
of free-will, in its distinction from the arbitrium brutum s.               
servum; because the empirical proposition does not assert that any          
particular characteristic necessarily belongs to the conception in          
question, but this is requisite in the process of definition.               
Freedom in relation to the internal legislation of reason can alone be      
properly called a power; the possibility of diverging from the law          
thus given is an incapacity or want of power. How then can the              
former be defined by the latter? It could only be by a definition           
which would add to the practical conception of the free-will, its           
exercise as shown by experience; but this would be a hybrid definition      
which would exhibit the conception in a false light.                        
  A morally practical law is a proposition which contains a                 
categorical imperative or command. He who commands by a law (imperans)      
is the lawgiver or legislator. He is the author of the obligation that      
accompanies the law, but he is not always the author of the law             
itself. In the latter case, the law would be positive, contingent, and      
arbitrary. The law which is imposed upon us a priori and                    
unconditionally by our own reason may also be expressed as                  
proceeding from the will of a supreme lawgiver or the Divine will.          
Such a will as supreme can consequently have only rights and not            
duties; and it only indicates the idea of a moral being whose will          
is law for all, without conceiving of him as the author of that will.       
  Imputation, in the moral sense, is the judgement by which anyone          
is declared to be the author or free cause of an action which is            
then regarded as his moral fact or deed, and is subjected to law. When      
the judgement likewise lays down the juridical consequences of the          
deed, it is judicial or valid (imputatio judiciaria s. valida);             
otherwise it would be only adjudicative or declaratory (imputatio           
dijudicatoria). That person- individual or collective- who is invested      
with the right to impute actions judicially, is called a judge or a         
court (judex s. forum).                                                     
  When any one does, in conformity with duty, more than he can be           
compelled to do by the law, it is said to be meritorious (meritum).         
What is done only in exact conformity with the law, is what is due          
(debitum). And when less is done than can be demanded to be done by         
the law, the result is moral demerit (demeritum) or culpability.            
  The juridical effect or consequence of a culpable act of demerit          
is punishment (paena); that of a meritorious act is reward (praemium),      
assuming that this reward was promised in the law and that it formed        
the motive of the action. The coincidence or exact conformity of            
conduct to what is due has no juridical effect. Benevolent                  
remuneration (remuneratio s. repensio benefica) has no place in             
juridical relations.                                                        
  The good or bad consequences arising from the performance of an           
obligated action- as also the consequences arising from failing to          
perform a meritorious action- cannot be imputed to the agent (modus         
imputation is tollens). The good consequences of a meritorious action-      
as also the bad consequences of a wrongful action- may be imputed to        
the agent (modus imputation is poneus).                                     
  The degree of the imputability of actions is to be reckoned               
according to the magnitude of the hindrances or obstacles which it has      
been necessary for them to overcome. The greater the natural                
hindrances in the sphere of sense, and the less the moral hindrance of      
duty, so much the more is a good deed imputed as meritorious. This may      
be seen by considering such examples as rescuing a man who is an            
entire stranger from great distress, and at very considerable               
sacrifice. Conversely, the less the natural hindrance, and the greater      
the hindrance on the ground of duty, so much the more is a                  
transgression imputable as culpable. Hence the state of mind of the         
agent or doer of a deed makes a difference in imputing its                  
consequences, according as he did it in passion or performed it with        
coolness and deliberation.                                                  
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                              -THE END-