Book 2
3
Now it is evident that it is not appetition; for in that case it would be either wish or desire or passion, since nobody wants to get a thing without having experienced one of those feelings. Now even animals possess passion and desire, but they do not have purposive choice. And again, beings that possess both of these often make choices even without passion and desire; and while they are experiencing these feelings do not make a choice but hold out. Again, desire and passion are always accompanied by pain, but we often make a choice even without pain.
4
But moreover purposive choice is not the same as wish either; for men wish for some things that they know to be impossible, for instance to be king of all mankind and to be immortal, but nobody purposively chooses a thing knowing it to be impossible, nor in general a thing that, though possible, he does not think in his own power to do or not to do. So that this much is clear—a thing purposively chosen must necessarily be something that rests with oneself.
