The purpose of life is to live it, to taste experience to the utmost, to reach out eagerly and without fear for newer and richer experience.
Every person must have a thought that changes them, or a book, or a word, or a moment; and if they don't, their life is wasted.
Great leaders don't create followers, they create more leaders.
In mathematics, the art of proposing a question must be held of higher value than solving it.
在科学发现中,合作是关键;没有人能独自完成。
A good world needs knowledge, kindliness, and courage; it does not need a regretful hankering after the past or a fettering of the free intelligence by the words uttered long ago by ignorant men.