I never know what I think about something until I read what I've written on it.

庭院虽小，自有赏心乐事；六经之外，更加无奇特之书。

学习数学的唯一方法就是做数学。

当你相信自己时，成功就会到来。

"Happiness is not something ready made. It comes from your own actions."

人生最大的荣耀不在于从不跌倒，而在于每次跌倒后都能站起来。