A wise man said， “Before you speak， let your words pass through three gates. At the first gate， ask yourself， “Is it true？” At the second gate ask， “Is it necessary？” At the third gate ask， “Is it kind？”

先爱自己，因为这是一切奇迹开始的地方。

You can tell whether a man is clever by his answers. You can tell whether a man is wise by his questions.

Asymmetric catalysis is not just a tool, it's a way of thinking about molecular transformations.