有些书最好的部份仅止于封面与书背。

我希望不久之后我们就能有一台能够解决所有数学问题的机器。

I don’t let negativity affect me.

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.