There is no such thing as a small moment; every moment contains eternity.
译文：人生要及时行乐，等到老了再看花，只会觉得凄凉。
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.
In mathematics, the art of proposing a question must be held of higher value than solving it.