But all admit that pain is a bad thing undesirable; partly bad in itself, partly bad as in some sort an impediment to activity. But that which is opposed to what is undesirable, in that respect in which it is undesirable and bad, is good. It follows, then, that pleasure is a good thing. And this argument cannot be met, as Speusippus tried to meet it, by the analogy of the greater which is opposed to the equal as well as to the less; for no one would say that pleasure is essentially a bad thing. 206