"When another blames thee or hates thee, or when men say about thee anything injurious, approach their poor souls, penetrate within, and see what kind of men they are. Thou wilt discover that there is no reason to take any trouble that these men may have this or that opinion about thee. However thou must be well disposed towards them, for by nature they are friends. And the gods too aid them in all ways, by dreams, by signs, towards the attainment of those things on which they set a value."
Marcus Aurelius 'Meditations, Book IX'