" Man is an animal, but even in his animal functions, he is not confined to the implicit, as the animal is; he becomes conscious of them, recognizes them, and lifts them, as, for instance, the process of digestion, into self-conscious science. In this way man breaks the barrier of his implicit and immediate character, so that precisely because he knows that he is an animal, he ceases to be an animal and attains knowledge of himself as spirit. "