SOCRATES: And an opinion must be of something?
PROTARCHUS: True.
SOCRATES: And a man must be pleased by something?
PROTARCHUS: Quite correct.
SOCRATES: And whether the opinion be right or wrong, makes no difference; it will still be an opinion?
PROTARCHUS: Certainly.
SOCRATES: And he who is pleased, whether he is rightly pleased or not, will always have a real feeling of pleasure?
PROTARCHUS: Yes; that is also quite true.
SOCRATES: Then, how can opinion be both true and false, and pleasure true only, although pleasure and opinion are both equally real?
PROTARCHUS: Yes; that is the question.