数学是一门艺术，作为艺术家，你必须对自己诚实。

我写歌不是为了拿奖，而是因为喜欢。

我宁愿发疯，也不愿理智。

I’m a great believer in solving hard problems by using a checklist. You need to get all the likely and unlikely answers before you; otherwise it’s easy to miss something important.

Sometimes the most ordinary things can be made extraordinary.