The duty of man is the same in respect to his own nature as in respect to the nature of all other things.
The most damaging phrase in the language is: 'We've always done it this way.'
True success comes from adding value to others, not just to yourself.
Sometimes you have to lose to appreciate winning.
自然的简单性不应以我们对简单性的概念来衡量。
"Books are mirrors, but they are also windows."