时间是您的朋友；冲动是您的敌人。
Time is your friend; impulse is your enemy.
无用的法律削弱了必要的法律。
真相很少是纯粹的，也从不简单。
自然将人类置于两位至高无上的主人——痛苦和快乐的统治之下。
The American farmer is the only man in our economy who has to buy everything he buys at retail, sell everything he sells at wholesale, and pay the freight both ways.