Euthyphro
Euthyphro. By Zeus, Socrates, if he should undertake to indict me, I fancy I should find his weak spot, and it would be much more a question about him in court than about me.
Socrates
Socrates. And I, my dear friend, perceiving this, wish to become your pupil; for I know that neither this fellow Meletus, nor anyone else, seems to notice you at all, but he has seen through me so sharply and so easily that he has indicted me for impiety. Now in the name of Zeus, tell me what you just now asserted that you knew so well. What do you say is the nature of piety and impiety, both in relation to murder and to other things? Is not holiness always the same with itself in every action and, on the other hand, is not unholiness the opposite of all holiness, always the same with itself and whatever is to be unholy possessing some one characteristic quality?