The only valid data for psychology are observable behaviors.

My life has no rules, only music.

事物的复杂性——事物中的事物——似乎是无止境的。我的意思是，没有什么是容易的，没有什么是简单的。

Diplomats should possess flexibility and adaptability to respond to rapidly changing international circumstances.

I have a very simple idea on how to get rich. The first is to spend less than you make, and the second is to invest the difference wisely.

科学的进步依赖于挑战未知的勇气和从失败中学习的智慧。

成功的最好方式是帮助别人成功。