数学的进步不仅仅依靠个人的努力，而是通过几代人的集体工作。
Mathematics advances not by the efforts of individuals alone but through the collective work of generations.
The only limit to our realization of tomorrow is our doubts of today.
学习是系统中产生的任何变化，这种变化或多或少会永久性地改变其适应环境的能力。
时间是我们唯一真正的敌人，也是我们永远无法击败的敌人。
当信息不对称或激励不一致时，市场就会失灵。
I think I have only one choice: either get busy living or get busy dying.
The limits of the possible can only be defined by going beyond them into the impossible.
