Nor do I converse only with those who pay; but any one, whether he be rich or poor, may ask and answer me and listen to my words; and whether he turns out to be a bad man or a good one, neither result can be justly imputed to me; for I never taught or professed to teach him anything. And if any one says that he has ever learned or heard anything from me in private which all the world has not heard, let me tell you that he is lying.
