SOCRATES: Do you deny that some pleasures are false, and others true?
PROTARCHUS: To be sure I do.
SOCRATES: Would you say that no one ever seemed to rejoice and yet did not rejoice, or seemed to feel pain and yet did not feel pain, sleeping or waking, mad or lunatic?
PROTARCHUS: So we have always held, Socrates.
SOCRATES: But were you right? Shall we enquire into the truth of your opinion?
PROTARCHUS: I think that we should.
SOCRATES: Let us then put into more precise terms the question which has arisen about pleasure and opinion. Is there such a thing as opinion?
PROTARCHUS: Yes.
SOCRATES: And such a thing as pleasure?
PROTARCHUS: Yes.