"Peace may cost as much as war, but it is a better buy."

"Hatred of enemies is easier and more intense than love of friends. But from men who are more anxious to injure opponents than to benefit the world at large no great good is to be expected."

"When you make a mistake, there are only three things you should ever do about it: admit it, learn from it, and don't repeat it."

"However many holy words you read, However many you speak, What good will they do you, If you do not act upon them?"

"Listen or thy tongue will keep thee deaf."

"When the going gets tough, the tough get going."

"Do not fear mistakes, there are none."

"Don't let it end like this. Tell them I said something."

"Anyone who has got a book collection and a garden wants for nothing."

"In the land of the blind, the one-eyed man is stoned to death."

"Nature and Nature's laws lay hid in night. God said, 'Let Newton be!' and all was light."

"The two most beautiful words in the English language are ``check enclosed.''"