Reality would be better delineated if, instead of defining the libido in vague terms of 'energy,' the significance of sexuality were juxtaposed with that of other human attitudes: taking, catching, eating, doing, undergoing, and so on; for sexuality is one of the singular modes of apprehending an object; the characteristics of the erotic object as it is shown not only in the sexual act but in perception in general would also have to be studied.