努力和奉献是这个行业长寿的关键。
领导力不是掌控他人，而是照顾好你负责的人。
A mathematician's work is never truly finished; there is always more to explore.
活着就是受苦，生存就是在苦难中找到某种意义。
The true discovery of America is before us. The true fulfillment of our spirit, of our people, of our mighty and immortal land, is yet to come.
Do what you can, with what you have, where you are.