Such knowledge is not of itself the practical act. The historian as such is a contemplative, not a practical man or politician. If that spark which is volition, do not spring forth, the material of knowledge does not catch fire and is not transformed into the material of the practical. But that knowledge is the condition, and if the condition be not the conditioned, yet one cannot have the conditioned without the condition. In this last signification, it is true that action is knowledge, will, and wisdom, that is to say, in the sense that willing and acting presuppose knowledge and wisdom. In this sense, and considered solely in the stage of the cognoscitive investigation which will form the base of action, the deliberation is a theoretical fact. The customary expressions of logical, rational, judicious actions, are metaphors, because action may be weak or energetic, coherent or incoherent; but it will not have those predicates which are proper to theoretical acts that precede actions, on which the metaphors aforesaid are founded. As are these acts, so originate the practical act, will, and action. We can act in so far as we have knowledge. Volition is not the surrounding world which the spirit perceives; it is a beginning, a new fact. But this fact has its roots in the surrounding world, this beginning is irradiated with the colours of things that man has perceived as a theoretical spirit, before he took action as a practical spirit.
Its continual changeability.
It is important to observe, as much to prevent an equivoke into which many fall, as because of the consequences that will follow from holding it, that we must not look upon the perceptive knowledge of reality that surrounds us as a firm basis, upon which we act, by translating the formed volition into act. For were this so, we should have to assume that the surrounding world, perceived by the spirit, stops after the perceptive act, which is not the case. That world changes every second, the perceptive act perceives the new and the different, and the volitional act changes according to that real and perceived change. Perception and volition alternate every instant; in order to will, we must touch the earth at every instant, in order to resume force and direction.
No other theoretic precedent.
Continuous perception and continuous change, that is the necessary theoretic condition of volition. It is necessary and unique. No other theoretical element is needed, because every other is contained in it, and beyond it no other is thinkable.
Critique of concepts and practical judgments.
But if this be true and no other theoretic element save that precede the volition, then we find in the aforesaid theory the criticism of a series of other theories, generally admitted in the Philosophy of the practical, not less than in ordinary thought, none of which can be retained without alterations and corrections.
Or better, there are not so many various theories to criticize; there is rather one theory, which presents itself under different aspects and assumes various names. This theory consists substantially in affirming that with the complex of cognitions, of which we have hitherto treated (all of which are summed up in the historical judgment), we do not yet possess that one which is necessary, before we can proceed to volition and action. A special form of concepts and judgments which can be called practical, must, it is said, appear; these render the will possible, by interposing themselves between the previous merely historical judgment and the will. Is it not indubitable that we possess practical concepts, that is, concepts of classes of action or of supreme guides to action, concepts of things good, of ideals, of ends, and that we effect judgments of value by the application of those concepts to the image of given actions? Is it not indubitable that those judgments and those concepts refer, not to the simple present fact, but to the future? How could we will, if we did not know what is good to will, and that a given possible action corresponds to that concept of good?
Posteriority of judgments to the practical act.
Now it is undeniable that we in fact possess the above-mentioned concepts and judgments. But what we must absolutely deny is that they differ in any respect from other concepts and theoretical judgments, and that they deserve to be distinguished from these as practical and that they have the future for their object. The future, that which is not, is not an object of knowledge; the material of the judgment, whether it concern actions or thoughts, does not alter its logical and theoretical character; the concepts of modes of action are concepts neither more nor less than those of modes of thought. With this negation we at the same time deny the possibility of their interposing themselves between knowledge and will. Those judgments, far from being anterior to the will, are posterior to it.