EUPHRATES was in the right to say, "I long endeavoured to conceal my embracing the philosophic life, and it was of use to me. For, in the first place, I knew that what I did right I did it not for spectators, but for myself. I ate in a proper manner for myself. I had a composed look and walk, all for God and myself. Then, as I fought alone, I was alone in danger. Philosophy was in no danger, on my doing anything shameful or unbecoming; nor did I hurt the rest of the world, which, by offending as a philosopher, I might have done. For this reason, they who were ignorant of my intention used to wonder, that while I conversed and lived entirely with philosophers, I never took up the character. And where was the harm, that I should be discovered to be a philosopher by my actions and not by the usual badges?"
EPICTETUS. DISCOURSES. Book iv. §8. ¶4