“All of life is action and passion, and not to be involved in the actions and passions of your time is to risk having not really lived at all.”

“The soul of man is divided into three parts, intelligence, reason, and passion. Intelligence and passion are possessed by other animals, but reason by man alone.”

“None can be free who is a slave to, and ruled by, his passions.”

“But this I know: if all mankind were to take their troubles to market with the idea of exchanging them, anyone seeing what his neighbor's troubles were like would be glad to go home with his own.”

“The most hateful grief of all human griefs is to have knowledge of a truth, but no power over the event.”

“The secret of success is that it is not the absence of failure, but the absence of envy.”

“If a man insisted always on being serious, and never allowed himself a bit of fun and relaxation, he would go mad or become unstable without knowing it.”