The secret of happiness is to expand your interests as much as possible and to be as kind as possible to the people and things that interest you.

The greatest question of our time is not communism versus individualism, not Europe versus America, not even the East versus the West; it is whether man can bear to live without God.

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。

The key to long-term success is creating value for society.

真正的喜悦精神、崇高感、超越人类的感觉，这是最高卓越的试金石，在数学中肯定能找到，就像在诗歌中一样。

如果你不喜欢某件事，就去改变它。如果你无法改变它，就改变你的态度。