君子有三种快乐，但称王天下不在其中。父母都健在，兄弟没有灾祸，这是第一种快乐；抬头无愧于天，低头无愧于人，这是第二种快乐；得到天下的优秀人才而教育他们，这是第三种快乐。

时间不会治愈伤口，而是让它们变得可以忍受。

Suffering is the school of wisdom.

真相往往隐藏在细节中。

The consequences of this problem make themselves felt in bookshops. When you go to a large bookshop and look at the self-help sections, as I sometimes do -- if you analyze self-help book sproduced in the world today, there are basically two kinds. The first kind tells you, "You can do it! You can make it! Anything's possible!" The other kind tells you how to cope with what we politely call "low self-esteem," or impolitely call, "feeling very bad about yourself."

Strive for excellence, not mediocrity.

科学的进步不是通过事实的积累，而是通过发现它们之间的新关系。

心灵是一个过程的时间模式。