[355b]
by his pleasures; while on the other hand you say that a man, knowing the good, refuses to do good because of the momentary pleasures by which he is overcome.
The absurdity of all this will be manifest if we refrain from using a number of terms at once, such as pleasant, painful, good, and bad; and as there appeared to be two things, let us call them by two names—first, good and evil, and then later on, pleasant and painful. Let us then lay it down as our statement,