你的20岁是你人生中最重要的十年。
我不让恐惧控制我,我让它挑战我。
成功的真正标准不仅仅是利润,而是你对人和环境产生的影响。
A mathematician is a person who can find analogies between theorems; a better mathematician is one who can see analogies between proofs and the best mathematician can notice analogies between theories.