"Patriots always talk of dying for their country and never of killing for their country."

"The main things which seem to me important on their own account, and not merely as means to other things, are knowledge, art, instinctive happiness, and relations of friendship or affection."

"There are two motives for reading a book: one, that you enjoy it; the other, that you can boast about it."

"Science may set limits to knowledge, but should not set limits to imagination."

"There is much pleasure to be gained from useless knowledge."

"Mathematics may be defined as the subject in which we never know what we are talking about, nor whether what we are saying is true."

"Listen; there's a hell of a good universe next door: let's go."

"Don't spend $2 to dry clean a shirt. Instead, donate it to the Salvation Army. They'll clean it and put it on a hanger. The next morning buy it back for seventy- five cents."

"In the cage there is food, not much, but there is food-outside are only great stretches of freedom."

"To find a fault is easy; to do better may be difficult."

"Skiing consists of wearing $3,000 worth of clothes and equipment and driving 200 miles in the snow in order to stand around at a bar and drink."

"Do not speak quickly; it is a sign of insanity."