"To refrain from imitation is the best revenge."

"[...] nothing is made worse or better by praise."

"Live not as though there were a thousand years ahead of you. Fate is at your elbow; make yourself good while life and power are still yours."

"[...] none of those things can injure me, for nobody can implicate me in what is degrading. Neither can I be angry with my brother or foul of him; for he and I were born to work together, like a man's two hands feet or eyelids, or like the upper and lower rows of his teeth. To obstruct each other is against nature's law and what is irritation or aversion but a form of obstruction?"