the Oracle at Delphi — once threw a man out of the temple for abandoning his friend. - Epictetus

If someone in the street were entrusted with your body, you would be furious. Yet you entrust your mind to anyone around who happens to insult you, and allow it to be troubled and confused. Aren’t you ashamed of that?

Good introduced human beings to be students of himself and his works, and not merely students but also interpreters of these things. It is wrong, therefore, for us to begin and end where the nonrational animals do. We should rather begin where they do but end where nature has ended in our case. Nature ended at studying and paying attention to things and a way of life in harmony with itself. See to it then, that you do not die without having studied these things.

You become what you give your attention to…If you yourself don’t choose what thoughts and images you expose yourself to, someone else will.