The relation of these different systems to each other is thus already intimated. The historical and collective life of the race is bound together by the idea of a spiritual and intellectual progress, and manifests a regular order of advancing, though not always continuous, stages of development. In this, the fact harmonizes with what we should expect from antecedent probabilities. Since, therefore, every philosophical system is only the philosophical expression of the collective life of its time, it follows that these different systems which have appeared in history will disclose one organic movement and form together one rational and internally connected (_gegliedertes_) system. In all their developments, we shall find one constant order, grounded in the striving of the spirit ever to raise itself to a higher point of consciousness and knowledge, and to recognize the whole spiritual and natural universe, more and more, as its outward being, as its reality, as the mirror of itself. _Hegel_ was the first to utter these thoughts and to consider the history of philosophy as a united process, but this view, which is, in its principle, true, he has applied in a way which would destroy the freedom of human actions, and remove the very conception of contingency, _i. e._ that any thing should be contrary to reason. Hegel’s view is, that the succession of the systems of philosophy which have appeared in history, corresponds to the succession of logical categories in a system of logic. According to him, if, from the fundamental conceptions of these different philosophical systems, we remove that which pertains to their outward form or particular application, &c., so do we find the different steps of the logical conceptions (_e. g._ being, becoming, existence, being _per se_ (_fürsichseyn_) quantity, &c.). And on the other hand, if we take up the logical process by itself, we find also in it the actual historical process.