The Socratic Method

“THRASYMACHUS: What’s that you’re saying?
SOCRATES: Just what you said, I believe…. Haven’t you admitted that the Rulers…. sometimes mistake their own best interests, and that at the same time it is right for the subjects to obey?…
THRASYMACHUS: Yes, I suppose so.
SOCRATES: Well, that amounts to admitting that it is right to do [...]