De Sacrificiis Abelis Et Caini

And take notice how very clearly it is enjoined, that he who is sacrificing may take a part of what is offered, and that he is not bound to offer the whole of what has been given him. For nature has given us a countless number of things, suitable to the human race, of all of which it receives no share itself: for instance, she has given us creation, though she is herself uncreate; and food, though she has no need of food; and growth, though she always remains in the same condition; and age, with reference to time, though she herself admits neither of addition nor of subtraction; an organic body, which she is incompetent to receive: also the powers of coming forward, of seeing, of applying food, and of disposing of it again when digested; of judging between the differences of scents, of using speech, of giving vent to laughter.