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.

物理定律在宇宙中任何地方都是相同的。

量子力学的数学形式不仅仅是一种工具，而且是现实深层结构的反映。

The first step in the art of cutting metals is to find a man who has the necessary skill and experience.

如果你打算尝试，那就全力以赴。否则，干脆不要开始。