First of all, then, it is because of its efficacy in expelling pain, and because of the excessiveness of the pain to which it is regarded as an antidote, that men pursue excessive pleasure and bodily pleasure generally. But these remedies produce an intense feeling, and so are pursued, because they appear in strong contrast to the opposite pain.
(The reasons why pleasure is thought to be not good are two, as we said before: (1) some pleasures are the manifestation of a nature that is bad either from birth, as with brutes, or by habit, as with bad men: (2) the remedial pleasures imply want; and it is better to be in a [natural] state than in a transition to such a state; but these pleasures are felt while a want in us is being filled up, and therefore they are only accidentally good.) 209