19. Let us now examine if certain actualizations seem to be imperfect when they are not joined to time, thus identifying themselves with movements, as life identifies itself with living. For (according to the Aristotelians) the life of each (being) is accomplished in a perfect time, and happiness is an actualization; not an individual one, indeed, but a sort of movement.[277] Consequently we will have to call life and happiness movements, and movement will have to be made a genus, though recognizing that movement forms a genus very different from quantity and quality; and, like them, relates to being. This genus could be divided into two species, movements of body and movements of soul, or movements spontaneous and communicated; or again, movements proceeding from the beings themselves, or movements proceeding from others. In this case, the movements proceeding from the beings themselves are actions, whether they communicate to others, or remain absolute in themselves (and not communicating to others, like speaking and walking); and the movements proceeding from others are "reactions" though the communicated movements seem to be identical with the movements proceeding from others. For example, division is one and the same thing, whether it be considered within him who divides, or in that which is divided; nevertheless dividing is something different from being divided. Or again, division is not one and the same thing according as it proceeds from him who divides, or as it is received by him who is divided; to divide means to cause in the divided thing another movement, which is the result of the dividing action or movement. Perhaps, indeed, the difference does not lie in the very fact of being divided, but in the movement which results from the division, as for instance, in suffering; for this is what constitutes reaction (or "passion").
What are we to say if there be no suffering? We might answer that the actualization of him who acts is simply present in such a thing (without correlative reaction). There are thus two manners of acting; to act within oneself, and to act outside of oneself. No more will it then be said that the first mode is proper acting, and the second reacting, but that there are two ways of acting outside of oneself, acting and reacting. For instance, writing is an operation in which one acts on something else without a correlative reaction, because in writing one produces nothing but the very actualization of writing, and not something else, like experiencing; for the quality of writing that has been produced is nothing that reacts (or, experiences). As to walking, though the earth be stepped on by the feet, it does not react (or, experience) as a consequence. On the contrary, if it be the body of an animal that is trod under feet, it may be conceived that there is reaction, because one then thinks of the suffering endured by the animal thus trod on, and not of the walking; otherwise, this reaction would have been conceived before (the notion of this reaction would have been implied in the very notion of walking).
ACTION AND REACTION FORM BUT A SINGLE GENUS.
Thus, in everything, acting forms but a single genus along with reacting, which (by the Aristotelians) is considered its opposite. Reacting is what follows acting, without being its contrary; to be burnt, for instance, follows burning, but is not its contrary. In this case, the reaction is what results in the object itself from the fact of burning, or of being burnt, which form but one (process), whether the result be suffering, or something else, as, for instance, depreciation. It might be objected, When one (being) makes another suffer, is it not true that the one acts, and the other reacts? Here from a single actualization result two facts, an action, and a reaction. Besides, it is not necessary to include in the action the will to cause suffering; it has only produced something else as a result of which it causes suffering, something which occurring in the being that suffers, and being one single (occurrence), that causes suffering. What then is this one identical thing which is anterior to the suffering? When there is no suffering, is there not nevertheless a reaction in him in whom is the modification? For instance, in him who hears? No: to hear is not to react, and sensation is not really a reaction;[278] but to suffer is to experience a reaction, and the reaction is not the contrary of the action (in the sense we have explained).
REACTIONS NEED NOT BE PASSIVE, BUT MAY BE ACTIVE.
20. Let it be granted, then, that reaction is not the contrary of action. Nevertheless, as it differs therefrom, it could not share the same genus. If both reaction and action be movements, they share the same genus, that of alteration, which is a movement, as respects quality.[279] When alteration proceeds from the being endowed with quality, is there any action, though this being remain impassible? Yes, for though impassible, it is active. It may be asked, is this being no longer active when it acts on some other object, as, for instance, by striking it, and then reacts? The answer is, that it would be active and passive simultaneously. If it be active, when it reacts—when, for instance, it rubs—why is it considered active rather than passive? Because it reacts in being rubbed while it rubs. Could we say that, because it is moved while moving, there were in it two movements? But how could there be two movements in it? Shall we assert that there is but one? In this case, how could the same movement be action and reaction simultaneously? Doubtless, it will be considered action, in so far as it proceeds from the mover; and reaction, inasmuch as it passes from the mover into the moved; and this, without ceasing to be one and the same thing. Would you say that reaction was a movement of a kind different from action? How then would the altering movement in a certain manner modify what reacts without an equal reaction in what is acting? But how (can we conceive) of reaction in that which acts on another object? Is the mere presence of the movement in the moved sufficient to constitute reaction?[280] But if, on one hand, the ("seminal) reason" of the swan whitens, and on the other hand the swan that is being born becomes white, shall we say that the swan is passive in becoming what it is his nature to be? If he becomes white even after his birth, is he still passive? If one thing increase, and another thing be increased, will we admit that the thing that increases reacts? Will we rather attribute reaction to the thing qualified? If one thing be embellished, and another thing embellishes it, could we say that the embellished thing reacts?[281] If however, the embellishing thing decreases, and, like tin, tarnishes, or on the contrary, like copper, takes on polish; shall we say that the tin acts, and the copper reacts (that is, "suffers")? Besides, it would be impossible to say that that which learns is passive (suffering)? Would this be because the action of him who acts passes into him? But how could there be any reaction ("suffering") since there is nothing there but an act? This action, no doubt, is not a reaction ("suffering"); but he who receives it is passive, because he participates in passivity. Indeed, from the fact that the learner does not himself act, it does not necessarily result that he is passive; for learning is not being struck, but grasping and discerning, as takes place with the process of vision.
DEFINITION OF REACTION OR SUFFERING.
21. How may we define the fact of "reaction"? We do not approve of the definition that it is the passing of the actualization from one being into another, if its receiver appropriate it. Shall we say that a (being) reacts when there is no actualization, but only an effective experience? But is it not possible that the being that reacts becomes better; while, on the contrary, the one who acts, loses? A (being) may also act in an evil manner, and exercise on another a harmful influence; and the actualization may be shameful, and the affective experience be honorable. What distinction shall we then establish (between action and reaction)? Shall we say that an action is to cause (an actualization) to pass from self into others, and that reaction is to receive in oneself (an action) from someone else? But then what about the (actualizations) produced in oneself which do not pass into others, such as thought and opinion? One can even excite oneself by a reflection or opinion of emotive value, without this emotion having been aroused by anybody else. We shall therefore define an action as a spontaneous movement, whether this movement remain in the being who produces it, or whether it pass into somebody else.
What then are the faculty of desire, and desire in general? If desire be excited by the desired thing (it is an experience, or passion), even if we should not take into consideration the cause of its excitement, and even if we only noticed that it arose later than the object; for this desire does not differ from an impression or an impulsion.
Shall we then, among desires, distinguish actions when they proceed from intelligence, and experiences when they invoke and draw (on the soul), so that the being be less passive by what it receives from others, than by what it receives from itself? Doubtless a being can act upon itself. (We can then define) an affective experience, and a being's experience, as follows. They consist of undergoing, without any contribution from oneself, a modification which does not contribute to "being," and which, on the contrary, alters, or at least, does not improve.