Epictetus. (c.A.D. 50c.A.D. 138). The Golden Sayings of Epictetus.
The Harvard Classics. 190914.
A guide, on finding a man who has lost his way, brings him back to the right pathhe does not mock and jeer at him and then take himself off. You also must show the unlearned man the truth, and you will see that he will follow. But so long as you do not show it him, you should not mock, but rather feel your own incapacity.