压力是一种特权。

试图阻止知识前进是没有好处的。无知永远不比知识好。

海，海，海。它翻滚着，翻滚着，呼唤着我。进来吧，它说，进来吧。

The great secret that all old people share is that you really haven't changed in seventy or eighty years. Your body changes, but you don't change at all. And that, of course, causes great confusion.

物理学和数学之间的界限并不像人们想象的那么清晰。