时间是你的朋友；冲动是你的敌人。

我不是传奇，我只是麦当娜。

A philosophical problem has the form: "I don't know my way about."

The first erroneous assumption is that quality means goodness, or luxury, or shininess, or weight. Quality means conformance to requirements.

我写作是为了理解世界，也是为了理解自己。

The night does not hide the world; it reveals another one.

物理学和数学之间的界限并不像人们想象的那么清晰。