学习数学的最好方法就是去做数学。

"Leadership is about making others better as a result of your presence and making sure that impact lasts in your absence."

事实是，我们对生活知之甚少，我们真的不知道什么是好消息，什么是坏消息。

心理学必须摆脱一切形而上学的纠缠。