译文：人不要做伤天害理之事，就不会有人恨得咬牙切齿。赏析：人做坏事自然就会有人讨厌，甚至是除之而后快的心。人做坏事，就是给自己带去祸患。

The deeper you go into mathematics, the more you realize how interconnected everything is.

The difference between good and great is the extra effort.

真相很少是纯粹的，也从不简单。