Against Hume rose up in Germany a famous school of philosophers beginning with Immanuel Kant, who was born in Prussia in 1724. Kant attempted to prove that the human reason was not untrustworthy, as Hume assumed, but limited, and that, within certain bounds, it was capable of arriving at practical truths. Kant's disciples, however, were not content with this modest restatement. Taking it too readily for granted that Hume's objections had been overcome, they proceeded to revive that unbounded faith in mere speculation which had been the distemper of the Greek mind. Fichte and Schelling were the first thinkers of note to attempt again to solve by logic the mystery of the universe. But their works are now obscured by the achievement of Hegel, who began to teach at Berlin in 1818. Hegel holds that the real universe is a universe of ideas to which his philosophy is the key, but, as ideas realise themselves in space and time, they come within the scope of the man of science. It is said that all bad German systems of philosophy when they die come to England. Hegelianism has certainly been very fashionable in this country, and its influence is still observable in academic circles. Auguste Comte is the Bacon of the nineteenth century. It has been his object to construct a _positive_ philosophy; that is to say, a doctrine capable of embracing all the sciences, and, with them, all the problems of social life. He holds that every branch of knowledge passes through three stages: the supernatural, or fictitious; the metaphysical or abstract; the positive or scientific. When the positive method is adopted, then shall we again have one general doctrine, powerful because general. The metaphysicians have failed to penetrate to the causes of things, but the men of science are succeeding in the humbler but far more useful work of tracing some of the laws that govern the phenomena of nature, and foreseeing their operations. It is only where the philosophers started matters capable of _positive_ treatment that any advance has been made in metaphysics. For the rest, philosophy leaves us in the nineteenth century at precisely the same point at which we were in the fifth. Thus is the circle completed. JOHN LOCKE Concerning the Human Understanding