It is a positive accomplishment of philosophy that mankind to-day has a clear and unequivocal conception of the necessity of the division of labor as a means of being successful. Our present day philosophers no longer make excursions into dreamland in the quest of the True, the Beautiful, and the Good, as did the ancients. The True, the Beautiful, and the Good, are nevertheless the objects of all modern science, only, thanks to evolution, these objects are now sought by special means. And the clear consciousness of this condition of things is a philosophical consciousness. It is a part of the theory of understanding to know that in order to accomplish something one must limit oneself to a specialty. That is a fundamental demand for the use of common sense, which the primitive musing brain did not realize. Thinking must be done with wide open and active eyes, with alert senses, not with closed eyes or fixed gaze. This is a part of logic. We do not deny that men have always done their thinking by means of the senses. We only claim that they did not do so from principle, otherwise the old complaint about the unreliability of the senses as a means of knowledge would not have lived so long. Neither would the inner man have been so excessively overestimated, nor abstract thought so much celebrated, just as if it alone were the child of nobler birth. I do not wish to detract from the merits of the power of abstraction, but I simply claim that the clay of which Adam was made was no less divine than the spiritual breath that gave him his life. Nor do I mean that it is due to philosophy alone that mankind learned not to strain "understanding" in abstract vaporings, but instead to introduce the division of labor and to take up the various specialties with open senses. The technique of understanding is the product of the entire movement of civilization, and as such a positive accomplishment of philosophy. The total process of evolution has placed the philosophers on their feet. There is no doubt that up to the present time, philosophy partook more of the character of a desire and love of science than of world wisdom. This wisdom does not amount to much, even to-day. This is plainly demonstrated by the dissensions of the educated and uneducated on all questions pertaining to wisdom of life. Socrates in the market of Athens, and Plato in his dialogues, have probably said better things about the questions: "What is virtue? What is justice? What is moral and reasonable?" than the professors of philosophy would know how to say to-day. Kant has well said that the unanimity of the experts is the test by which one may decide what is a scientific fact and what is mere dispute. From this it is easy to judge that wisdom of life is still in a bad way and will have to wait for its scientific transformation. We declared understanding itself to be the special object of philosophy and shall now attempt to outline the results so far obtained by it.