“Be careless in your dress if you must, but keep a tidy soul.”

“When I was a boy of fourteen, my father was so ignorant I could hardly stand to have the old man around. But when I got to be twenty-one, I was astonished at how much the old man had learned in seven years.”

“There is no sadder sight than a young pessimist.”

“Circumstances make man, not man's circumstances.”

“A truth is not hard to kill, a lie told well is immortal.”

“I have found that there is no surer way to find out whether you like people or hate them than to travel with them.”

“Concerning the difference between man and the jackass, some observers hold that there isn't any.”

“I am an old man and have known a great many troubles, but most of them never happened.”

“Loyalty to country — always. Loyalty to government — when it deserves it.”