"To distinguish means to filter, to distill this continuous flux of the essence of things, to concentrate it into an image. To perceive the world in depth means to be touched and penetrated by it to the point of being changed and modified by it. For a sessile being, knowing the world coincides with a variation of its own form--a metamorphosis provoked by the outside. This is what one calls sex: the supreme form of sensibility, that which allows us to conceive of the other at the very moment when the other modifies our way of being and obliges us to go, to change, to become other."