In order to link together, in a defined character, a partial structure and the visible totality of a living being, it is now necessary to refer to the purely biological laws, which, apart from all descriptive signs and as it were set back from them, organize the relations between functions and organs; living beings no longer define their resemblances, their affinities, and their families on the basis of their displayed descriptability; they possess characters which language can scan and define because they have a structure that is, in a way, the dark, concave, inner side of their visibility: it is on the clear and discursive surface of this secret but sovereign mass that characters emerge, a sort of storehouse exterior to the periphery of organisms now bound in upon themselves.