ideology, because it is the explicit negation of every form of rationalism, understanding by this word this concept, that things in their existence and their development answer to a norm, an ideal, a measure, an end, in an implicit or explicit fashion. The whole course of human events is a sum, a succession of series of conditions which men have made and laid down for themselves through the experience accumulated in their changing social life, but it represents neither the tendency to realize a predetermined end nor the deviation of a first principle from perfection and felicity. Progress itself implies merely that empirical and circumstantial notion of a thing which is at present defined in our mind, because, thanks to the development thus far realized, we are in a position to estimate the past and to foresee, at least in a certain sense and in a certain measure, the future. V. In this fashion a serious ambiguity is dissolved and the errors carried with it are removed. Reasonable and well founded is the tendency of those who aim to subordinate the sum total of human events in their course to the rigorous conception of determinism. There is, on the contrary, no reason for confusing this derived, reflex and complex determinism with the determinism of the immediate struggle for existence which is produced and developed on a field not modified by the continued action of labor. Legitimate and well founded, in an absolute fashion, is the historical explanation which proceeds in its course from the volitions which have voluntarily regulated the different phases of life, to the motives and objective causes of every choice, discovered in the conditions of environment, territory, accessible means of existence and conditions of experience. But there is, on the contrary, no foundation for that opinion which tends to the negation of every volition by consequence of a theoretical view which would substitute automatism for voluntarism. There is nothing in it, as a matter of fact, but a pure and simple conceit.