“I ask and beg of you, on your part, that you let wisdom sink into your soul, and test your progress, not by mere speech or writings, but by stoutness of heart and decrease of desire. Prove your words by your deeds.
. . . philosophy teaches us to act, not to speak; it exacts of every man that he should live according to his own standards, that his life should not be out of harmony with his words, and that, further, his inner life should be of one hue and not out of harmony with all his activities. This, I say, is the highest duty and the highest proof of wisdom, – that deed and word should be in accord, that a man should be equal to himself under all conditions, and always the same.” (Seneca, Moral Letter 20, On Practicing What You Preach”)
