在数学中,提出问题的艺术必须比解决问题更有价值。
As much as child e'er loved, or father found.
The poor have no choice but to be honest. The rich can afford to be dishonest.
宇宙不仅比我们想象的更奇怪,而且比我们能够想象的还要奇怪。
I don’t fear losing. I fear not giving my best.