When the systematic character of philosophy is conceived in this way, it is seen that the system is not something superadded, like a thread used for binding together the various parts of philosophy and quite external to the objects that it unites, so that we can consider separately the objects and the thread, the parts and the system. In philosophy, none of the parts are without the whole, and the whole does not exist without the parts. Translated into other terms, this means chat there are not _particular_ philosophic sciences, just as there is not a _general_ philosophy. We have made use of this proposition, in order to confute the usual conception of Logic as a prologue to philosophy, and to show how this error (which in the case of Logic is supported by special reasons) is the principal source of other like errors. Thus Metaphysic or Ontology, or some other science, which is supposed to give the unity of the real, of which the special philosophic sciences give only the distinctions, is placed before or after the special philosophic sciences like a prologue or an epilogue. The truth is that general philosophy is nothing but the special philosophic sciences, and _vice versa._ The plural and the singular cannot be separated in the pure concept, where the plural is plural of the singular, and the singular is singular of the plural. [Sidenote: _Evils of the conception of a general philosophy, separated from particular philosophies._] The destruction of this erroneous idea of a general philosophy has direct practical, importance. For, once the so-called science has been constituted, by means of a group of arbitrarily isolated problems, which really belong to the various sciences called particular, we are led to believe that true philosophy consists of a medley, in constant agitation and shock, and that, thanks to this agitation and these shocks, it becomes ever more worthy of itself, that is, of being a medley. But the problems of God and of the world, of spirit and of matter, of thought and of nature, of subject and of object, of the individual and of the universal, of life and death, torn from Logic, from Æsthetic, from the Philosophy of the practical, become insoluble or are solved only in appearance (that is to say, verbally and imaginatively). Many young men, ignorant of all particular philosophical knowledge, attack them as if they were the first step in philosophy, and many old professors find themselves at the end of their lives in the same state of mental confusion as at the beginning, indeed with their confusion increased and henceforth inextricable, owing to the false path that they have followed for so many years. They have not respected philosophy, in their first relations with it; they resemble those men who will never really love a woman, because they failed of respect to women in their youth. On the other hand, the so-called particular philosophical sciences, deprived of some of