The subsequent philosophers, especially the Hegelian philosophy, opposed this separation which assigned to the intellect only the study of phenomena and to faith the absolute and infinite for veneration. But they did not yet succeed in completely mastering the matter, they did not fully arrive at an indubitably clear exposition of the fountain of understanding and of the unity of truth, so that reaction nowadays can again sound the retreat after the melody: "Back to Kant." You know that Lessing complained about the treatment of "a dead dog" accorded to Spinoza, and Marx added pointedly: "Hegel is more of a dead dog to-day than Spinoza was at Lessing's time." The enemies of the working class are the enemies of evolution. They wish to preserve the existing order of things and the good old time in which they feel at home. For this reason it is the mission of the proletariat to continue the work of logic. It is our duty to show clearly that the metaphysical truth which Kant opposed to the phenomena of nature and could not eliminate from the intellect, is nothing but just a metaphysical, a fantastically exaggerated, thing. According to our logic, the universe is the truth and everything partakes of it. That such a truth is logical and such a logic true, is shown by the interconnection of things, so that this science is applicable to everything which the sciences respect as reasonable and true. In order to help you in the understanding of the absolute and liberate your thought from all special miracles, I refer to Kant's critique of reason. It teaches that our intellect becomes a source of understanding only in connection with other phenomena of nature. Only his critique stuck fast in the mysterious fountain of causality. Thus he showed that he was only a seeker after logic, not its master. The conclusion that there must be _something_ that does appear where there are phenomena is certainly correct. But that which Kant was thinking of, something of a transcendental or metaphysical nature, led him to the radically wrong conclusion that there must be something different, peculiar, miraculous, mysterious, wherever there are phenomena. The Kantian conclusion that there must be an absolute truth by itself behind a phenomenon, an absolute truth that exists independent of and disconnected with such phenomenon, was due to his fetish-like conception of truth. It is the first requirement for a correct use of the faculty of logical reasoning to know that truth is the common nature of the universe.