I pass at length to the other part of ethics which concerns the method or way which leads to liberty. In [the following], therefore, I shall treat of the power of reason, showing how much reason itself can control the emotions, and then what is freedom of mind or blessedness. Thence we shall see how much stronger the wise man is than the ignorant. In what manner and what way the intellect should be rendered perfect, and with what art the body is to be cared for in order that it may properly perform its functions, I have nothing to do with here; for the former belongs to logic, the latter to medicine. I shall occupy myself here, as I have said, solely with the power of the mind or of reason, first of all showing the extent and nature of the authority which it has over the emotions in restraining them and governing them; for that we have not absolute authority over them we have already demonstrated. The Stoics indeed thought that the emotions depend absolutely on our will, and that we are absolutely masters over them; but they were driven, by the contradiction of experience, though not by their own principles, to confess that not a little practice and study are required in order to restrain and govern the emotions. This one of them attempted to illustrate, if I remember rightly, by the example of two dogs, one of a domestic and the other of a hunting breed; for he was able by habit to make the house dog hunt, and the hunting dog, on the contrary, to desist from running after hares.

To the Stoical opinion Descartes much inclines. He affirms that the soul or mind is united specially to a certain part of the brain called the pineal gland, which the mind by the mere exercise of the will is able to move in different ways, and by whose help the mind perceives all the movements which are excited in the body and external objects. This gland, he affirms, is suspended in the middle of the brain in such a manner that it can be moved by the least motion of the animal spirits. Again, he affirms that any variation in the manner in which the animal spirits impinge upon this gland is followed by a variation in the manner in which it is suspended in the middle of the brain, and moreover that the number of different impressions on the gland is the same as that of the different external objects which propel the animal spirits toward it. Hence it comes to pass that if the gland, by the will of the soul moving it in different directions, be afterwards suspended in this or that way in which it had once been suspended by the spirits agitated in this or that way, then the gland itself will propel and determine the animal spirits themselves in the same way as that in which they had before been repelled by a similar suspension of the gland. Moreover, he affirmed that each volition of the mind is united in Nature to a certain motion of the gland. For example, if a person wishes to behold a remote object, this volition will cause the pupil of the eye to dilate, but if he thinks merely of the dilation of the pupil, to have that volition will profit him nothing, because Nature has not connected a motion of the gland which serves to impel the animal spirits towards the optic nerve in a way suitable for dilation or contraction of the pupil with the volition or dilation or contraction, but only with the volition of beholding objects afar off or close at hand. Finally, he maintained that although each motion of this gland appears to be connected by Nature from the commencement of our life with an individual thought, these motions can nevertheless be connected by habit with other thoughts, a proposition which he attempts to demonstrate in his "Passions of the Soul" (art. 50, pt. 1).

From this he concludes that there is no mind so feeble that it cannot, when properly directed, acquire absolute power over its passions; for passions, as defined by him, are "perceptions, or sensations, or emotions of the soul which are related to it specially, and which (N.B.) are produced, preserved, and strengthened by some motion of the spirits." (See the "Passions of Soul," art. 27, pt. 1.) But since it is possible to join to a certain volition any motion of the gland, and consequently of the spirits, and since the determination of the will depends solely on our power, we shall be able to acquire absolute mastery over our passions provided only we determine our will by fixed and firm decisions by which we desire to direct our actions and bind with these decisions the movements of the passions we wish to have.

So far as I can gather from his own words, this is the opinion of that distinguished man, and I could scarcely have believed it possible for one so great to have put it forward if it had been less subtle. I can hardly wonder enough that a philosopher who firmly resolved to make no deduction except from self-evident principles, and to affirm nothing but what he clearly and distinctly perceived, and who blamed all the Schoolmen because they desired to explain obscure matters by occult qualities, should accept a hypothesis more occult than any occult quality.

What does he understand, I ask, by the union of the mind and body? What clear and distinct conception has he of thought intimately connected with a certain small portion of matter? I wish that he had explained this union by its proximate cause. But he conceived the mind to be so distinct from the body that he was able to assign no single cause of this union, nor of the mind itself, but was obliged to have recourse to the cause of the whole universe, that is to say, to God. Again, I should like to know how many degrees of motion the mind can give to that pineal gland, and with how great a power the mind can hold it suspended. For I do not understand whether this gland is acted on by the mind more slowly or more quickly than by the animal spirits, and whether the movements of the passions, which we have so closely bound with firm decisions, might not be separated from them again by bodily causes, from which it would follow that although the mind had firmly determined to meet danger, and had joined to this decision the motion of boldness, the sight of the danger might cause the gland to be suspended in such a manner that the mind could think of nothing but flight. Indeed, since there is no relation between the will and motion, so there is no comparison between the power or strength of the body and that of the mind, and consequently the strength of the body can never be determined by the strength of the mind. It is to be remembered also that this gland is not found to be so situated in the middle of the brain that it can be driven about so easily and in so many ways, and that all the nerves are not extended to the cavities of the brain.

Lastly, I omit all that Descartes asserts concerning the will and the freedom of the will, since I have shown over and over again that it is false. Therefore, inasmuch as the power of the mind, as I have shown above, is determined by intelligence alone, we shall determine by the knowledge of the mind alone the remedies against the emotions—remedies which every one, I believe, has experienced, although there may not have been any accurate observation or distinct perception of them, and from this knowledge of the mind alone shall we deduce everything which relates to its blessedness.

Axioms

I. If two contrary actions be excited in the same subject, a change must necessarily take place in both, or in one alone, until they cease to be contrary.

II. The power of an emotion is limited by the power of its cause, in so far as the essence of the emotion is manifested or limited by the essence of the cause itself.

The Strength of the Emotions

The emotion towards an object which we imagine to be free is greater than towards one which is necessary, and consequently still greater than towards one which we imagine as possible or contingent. But to imagine an object as free can be nothing else than to imagine it simply, while we know not the causes by which it was determined to action. An emotion, therefore, towards an object which we simply imagine is, other things being equal, greater than towards one which we imagine as necessary, possible, or contingent, and consequently greatest of all.

The mind understands all things to be necessary and determined by an infinite chain of causes to existence and action, and therefore so far enables itself to suffer less from the emotions which arise from these things, and to be less affected towards them.

The more this knowledge that things are necessary is applied to individual things which we imagine more distinctly and more vividly, the greater is this power of the mind over the emotions—a fact to which experience also testifies. For we see that sorrow for the loss of anything good is diminished if the person who has lost it considers that it could not by any possibility have been preserved. So also we see that nobody pities an infant because it does not know how to speak, walk, or reason, and lives so many years not conscious, as it were, of itself. But if a number of human beings were born adult, and only a few here and there were born infants, every one would pity the infants, because we should then consider infancy not as a thing natural and necessary, but as a defect or fault of Nature. Many other facts of a similar kind we might observe.

We do not contemplate an object as absent by reason of the emotion by which we imagine it, but by reason of the fact that the body is affected with another modification, which excludes the existence of that object. The emotion, therefore, which is related to an object which we contemplate as absent, is not of such a nature as to overcome the other actions and power of man, but, on the contrary, is of such a nature that it can in some way be restrained by those modifications which exclude the existence of its external cause. But the emotion which arises from reason is necessarily related to the common properties of things, which we always contemplate as present for nothing can exist which excludes their present existence, and which we always imagine in the same way. This emotion, therefore, always remains the same, and consequently the emotions which are contrary to it, and which are not maintained by their external cause, must more and more accommodate themselves to it until they are no longer contrary to it. So far, therefore, the emotion which springs from reason is the stronger.

A number of simultaneous causes can do more than if they were fewer, and therefore the greater the number of the simultaneous causes by which an emotion is excited, the greater it is.

An emotion is bad or injurious only in so far as it hinders the mind from thinking and therefore that emotion by which the mind is determined to the contemplation of a number of objects at the same time is less injurious than another emotion equally great which holds the mind in the contemplation of one object alone or of a few objects, so that it cannot think of others. Again, since the essence of the mind, that is to say, its power, consists in thought alone, the mind suffers less through an emotion by which it is determined to the contemplation of a number of objects at the same time than through an emotion equally great which holds it occupied in the contemplation of one object alone or of a few objects. Finally, this emotion, in so far as it is related to a number of external causes, is therefore less towards each.

The Power of the Intellect Over the Emotions

I

General Principles

The order and connection of ideas is the same as the order and connection of things, and vice versa, the order and connection of things is the same as the order and connection of ideas. Therefore, as the order and connection of ideas in the mind is according to the order and connection of the modifications of the body it follows vice versa, that the order and connection of the modifications of the body is according to the order and connection in the mind of the thoughts and ideas of things.

If we detach an emotion of the mind from the thought of an external cause and connect it with other thoughts, then the love or hatred towards the external cause and the fluctuations of the mind which arise from these emotions will be destroyed.

An emotion which is a passion is a confused idea. If, therefore, we form a clear and distinct idea of this emotion, the idea will not be distinguished—except by reason—from this emotion, in so far as the emotion is related to the mind alone, and therefore the emotion will cease to be a passion.

In proportion, then, as we know an emotion better is it more within our control, and the less does the mind suffer from it.

Those things which are common to all cannot be otherwise than adequately conceived and therefore there is no modification of the body of which we cannot form some clear and distinct conception.

Hence it follows that there is no emotion of which we cannot form some clear and distinct conception. For an emotion is an idea of a modification of the body, and this idea therefore must involve some clear and distinct conception.

Since nothing exists from which some effect does not follow, and since we understand clearly and distinctly everything which follows from an idea which is adequate in us, it is a necessary consequence that every one has the power, partly at least, if not absolutely, of understanding clearly and distinctly himself and his emotions, and consequently of bringing it to pass that he suffers less from them. We have therefore mainly to strive to acquire a clear and distinct knowledge as far as possible of each emotion, so that the mind may be led to pass from the emotion to think those things which it perceives clearly and distinctly, and with which it is entirely satisfied, and to strive also that the emotion may be separated from the thought of an external cause and connected with true thoughts. Thus not only love, hatred, etc., will be destroyed, but also the appetites or desires to which the emotion gives rise cannot be excessive. For it is above everything to be observed that the appetite by which a man is said to act is one and the same appetite as that by which he is said to suffer. For example, we have shown that human nature is so constituted that every one desires that other people should live according to his way of thinking, a desire which in a man who is not guided by reason is a passion which is called ambition, and is not very different from pride; while, on the other hand, in a man who lives according to the dictates of reason it is an action or virtue which is called piety. In the same manner, all the appetites or desires are passions only in so far as they arise from inadequate ideas, and are classed among the virtues whenever they are excited or begotten by adequate ideas; for all the desires by which we are determined to any action may arise either from adequate or inadequate ideas. To return, therefore, to the point from which we set out: there is no remedy within our power which can be conceived more excellent for the emotions than that which consists in true knowledge of them, since the mind possesses no other power than that of thinking and forming adequate ideas, as we have shown above.

II

The Natural Basis of Rational Control

The greater the number of objects to which an image or emotion is related, the greater is the number of causes by which it can be excited and cherished. All these causes the mind contemplates simultaneously by means of the emotion (by hypothesis), and therefore the more constant is the emotion, or the more frequently does it present itself, and the more does it occupy the mind.

Things which we clearly and distinctly understand are either the common properties of things or what are deduced from them, and consequently are more frequently excited in us; and therefore it is easier for us to contemplate other things together with these which we clearly and distinctly understand than with any others, and consequently it is easier to connect things with these which we clearly and distinctly understand than with any others.

The greater the number of other things with which any image is connected, the more frequently does it present itself. For the greater the number of other things with which an image is connected, the greater is the number of causes by which it may be excited.

There is no modification of the body of which the mind cannot form some clear and distinct conception and therefore it can cause all the modifications of the body to be related to the idea of God.

III

The Function of the Intellectual Order

The emotions which are contrary to our nature, that is to say, which are evil, are evil so far as they hinder the mind from understanding. So long, therefore, as we are not agitated by emotions which are contrary to our nature, so long the power of the mind by which it endeavors to understand things is not hindered, and therefore so long does it possess the power of forming clear and distinct ideas, and of deducing them the one from the other. So long, consequently, do we possess the power of arranging and connecting the modifications of the body according to the order of the intellect.

Through this power of properly arranging and connecting the modifications of the body we can prevent ourselves from being easily affected by evil emotions. For a greater power is required to restrain emotions which are arranged and connected according to the order of the intellect than is required to restrain those which are uncertain and unsettled. The best thing, therefore, we can do, so long as we lack a perfect knowledge of our emotions, is to conceive a right rule of life, or sure maxims (dogmata) of life—to commit these latter to memory, and constantly to apply them to the particular cases which frequently meet us in life, so that our imagination may be widely affected by them, and they may always be ready to hand. For example, amongst the maxims of life we have placed this, that hatred is to be conquered by love or generosity, and is not to be met with hatred in return. But in order that we may always have this prescript of reason in readiness whenever it will be of service, we must think over and often meditate upon the common injuries inflicted by men, and consider how and in what way they may best be repelled by generosity; for thus we shall connect the image of injury with the imagination of this maxim, and it will be at hand whenever an injury is offered to us. If we also continually have regard to our own true profit, and the good which follows from mutual friendship and common fellowship, and remember that the highest peace of mind arises from a right rule of life, and also that man, like other things, acts according to the necessity of Nature, then the injury or the hatred which usually arises from that necessity will occupy but the least part of the imagination, and will be easily overcome: or supposing that the anger which generally arises from the greatest injuries is not so easily overcome, it will nevertheless be overcome, although not without fluctuation of mind, in a far shorter space of time than would have been necessary if we had not possessed those maxims on which we had thus meditated beforehand.

Concerning strength of mind, we must reflect in the same way for the purpose of getting rid of fear, that is to say, we must often enumerate and imagine the common dangers of life, and think upon the manner in which they can best be avoided and overcome by presence of mind and courage. It is to be observed, however, that in the ordering of our thoughts and images we must always look to those qualities which in each thing are good, so that we may be determined to action always by an emotion of joy.

For example, if a man sees that he pursues glory too eagerly, let him think on its proper use, for what end it is to be followed, and by what means it can be obtained; but let him not think upon its abuse and vanity, and on the inconstancy of men, and things of this sort, about which no one thinks unless through disease of mind. For with such thoughts do those who are ambitious greatly torment themselves when they despair of obtaining the honors for which they are striving; and while they vomit forth rage, wish to be thought wise. Indeed it is certain that those covet glory the most who are loudest in declaiming against its abuse and the vanity of the world. Nor is this a peculiarity of the ambitious, but is common to all to whom fortune is adverse and who are impotent in mind; for we see that a poor and avaricious man is never weary of speaking about the abuse of money and the vices of the rich, thereby achieving nothing save to torment himself and show to others that he is unable to bear with equanimity not only his own poverty but also the wealth of others. So also a man who has not been well deceived by his mistress thinks of nothing but the fickleness of women, their faithlessness, and their other oft-proclaimed failing—all of which he forgets as soon as he is taken into favor by his mistress again. He, therefore, who desires to govern his emotions and appetites from a love of liberty alone will strive as much as he can to know virtues and their causes, and to fill his mind with that joy which springs from a true knowledge of them. Least of all will he desire to contemplate the vices of men and disparage men, or to delight in a false show of liberty. He who will diligently observe these things (and they are not difficult), and will continue to practice them, will assuredly in a short space of time be able for the most part to direct his actions in accordance with the command of reason.

IV

Summary

I have, in what has preceded, included all the remedies for the emotions, that is to say, everything which the mind, considered in itself alone, can do against them. It appears therefrom that the power of the mind over the emotions consists—

1. In the knowledge itself of the emotions.

2. In the separation by the mind of the emotions from the thought of an external cause, which we imagine confusedly.

3. In duration, in which the emotions which are related to objects we understand surpass those related to objects conceived in a mutilated or confused manner.

4. In the multitude of causes by which the emotions which are related to the common properties of things or to God are nourished.

5. In the order in which the mind can arrange its emotions and connect them one with the other.

But that this power of the mind over the emotions may be better understood, it is to be carefully observed that we call the emotions great when we compare the emotion of one man with that of another, and see that one man is agitated more than another by the same emotion, or when we compare the emotions of one and the same man with one another, and discover that he is affected or moved more by one emotion than by another.

For the power of any emotion is limited by the power of the external cause as compared with our own power. But the power of the mind is limited solely by knowledge, whilst impotence or passion is estimated solely by privation of knowledge, or, in other words, by that through which ideas are called inadequate; and it therefore follows that that mind suffers the most whose largest part consists of inadequate ideas, so that it is distinguished rather by what it suffers than by what it does, while, on the contrary, that mind acts the most whose largest part consists of adequate ideas, so that although it may possess as many inadequate ideas as the first, it is nevertheless distinguished rather by those which belong to human virtue than by those which are a sign of human impotence. Again, it is to be observed that our sorrows and misfortunes mainly proceed from too much love towards an object which is subject to many changes, and which we can never possess. For no one is troubled or anxious about any object he does not love, neither do wrongs, suspicions, hatreds, etc., arise except from love towards objects of which no one can be truly the possessor.

From all this we easily conceive what is the power which clear and distinct knowledge, and especially that third kind of knowledge whose foundation is the knowledge itself of God, possesses over the emotions; the power, namely, by which it is able, in so far as they are passions, if not actually to destroy them, at least to make them constitute the smallest part of the mind. Moreover, it begets a love towards an immutable and eternal object of which we are really partakers; a love which therefore cannot be vitiated by the defects which are in common love, but which can always become greater and greater, occupy the largest part of the mind, and thoroughly affect it.

I have now concluded all that I had to say relating to this present life. For any one who will attend to what has been urged will easily be able to see the truth of what I said—that in these few words all the remedies for the emotions are comprehended. It is time, therefore, that I should now pass to the consideration of those matters which appertain to the duration of the mind without relation to the body.