成功不是终点，失败也不是致命的，重要的是继续前进的勇气。
Success is not final, failure is not fatal: It is the courage to continue that counts.
Well, the first rule is that you can’t really know anything if you just remember isolated facts and try and bang ’em back. If the facts don’t hang together on a latticework of theory, you don’t have them in a usable form.