“The first half of life consists of the capacity to enjoy without the chance, the last half consists of the chance without the capacity. ”

“But the capacity to enjoy is impossible without the capacity to suffer; and the faculty of enjoyment is one with that of pain. Whosoever does not suffer does not enjoy, just as whosoever is insensible to cold is insensible to heat.”

“A consistent man believes in Destiny — a capricious man in Chance.”

“The criterion of "progress" between two cultures or two eras consists of a greater capacity to kill.”

“Power consists in one's capacity to link his will with the purpose of others, to lead by reason and a gift of cooperation.”

“Life without absorbing occupation is hell — joy consists in forgetting life.”

“Success in life consists of standing without shame before God.”

“Bacteria… have been here for three and a half billion years, and without them we have no chance whatsoever of survival. Humans are something very recent, like the froth on top of a glass of beer.”

“Enjoy your sweat because hard work doesn't guarantee success, but without it, you don't have a chance.”

“A person who has not done one half his day's work by ten o'clock runs a chance of leaving the other half undone.”