Logic is a feeble reed, friend. "Logic" proved that airplanes can't fly and that H-bombs won't work and that stones don't fall out of the sky. Logic is a way of saying that anything which didn't happen yesterday won't happen tomorrow.

A fool cannot be protected from his folly. If you attempt to do so, you will not only arouse his animosity but also you will be attempting to deprive him of whatever benefit he is capable of deriving from experience. Never attempt to teach a pig to sing; it wastes your time and annoys the pig.

But if you didn't have more urgent things to do after supper [in boot camp], you could write a letter, loaf, gossip, discuss the myriad mental shortcomings of sergeants and, dearest of all, talk about the female of the species (we became convinced that there was no such creatures, just mythology created by inflamed imaginations - one boy in our company claimed to have seen a girl, over at regimental headquarters; he was unanimously judged a liar and a braggart).

You got the impression that he never needed to sleep - just ten-thousand-mile checkups and dust him off occasionally.

A zest for living must include a willingness to die.

Age is not an accomplishment, and youth is not a sin.

when faced with a problem you do not understand, do any part of it you do understand, then look at it again.