The modern themes of an individual who lives, speaks, and works in accordance with the laws of an economics, a philology, and a biology, but who also, by a sort of internal torsion and overlapping, has acquired the right, through the interplay of those very laws, to know them and to subject them to total clarification all these themes so familiar to us today and linked to the existence of the 'human sciences' are excluded by Classical thought: it was not possible at that time that there should arise, on the boundary of the world, the strange stature of a being whose nature (that which determines it, contains it, and has traversed it from the beginning of time) is to know nature, and itself, in consequence, as a natural being.