愛(ài)是脆弱的，你必須像對(duì)待生命體一樣呵護(hù)它，否則它會(huì)消失。
人類就像江河一樣：木杖剛把波浪劃開(kāi)，波浪又立刻流到一起去了。
A mathematician's work is mostly a solitary pursuit, but it is also deeply collaborative.
The first duty of a man is to think for himself.