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成功不是终点,失败也不是致命的:重要的是继续前进的勇气。
Success is not final, failure is not fatal: It is the courage to continue that counts.
Mathematics is not a spectator sport.
The only way to deal with an unfree world is to become so absolutely free that your very existence is an act of rebellion.
When you solve a mathematical problem, you don't just get the answer - you understand why it's the answer.
政府开支的第一条规则:为什么只建一个,当你可以用两倍的价格建两个时?