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.

Attosecond science allows us to capture the fastest motions in the microcosm, like freezing the wingbeat of a hummingbird.

愚蠢的时间由时钟衡量，但智慧的时间：没有时钟可以衡量。

Cowards die many times before their deaths