The joy of discovery in mathematics is unparalleled.
破坏其土壤的国家就是自取灭亡。
所以，即使做很困难的事情，也一定能够达到目的，没听说过想达到自己的愿望，而能回避困难的。
Spend each day trying to be a little wiser than you were when you woke up.
Great leaders don't just manage resources; they create new markets.
领导力就是今天做出艰难的决策，明天让所有人受益。