“Men trust their ears less than their eyes.”

“When a train goes through a tunnel and it gets dark, you don't throw away the ticket and jump off. You sit still and trust the engineer.”

“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.”

“Adversity has the effect of drawing out strength and qualities of a man that would have laid dormant in its absence.”