金钱是非常不可思议的东西。它和爱一样，是人类喜悦的最大来源。但是它也和死一样，是人类忧烦的最大来源。
Money is a singular thing. It ranks with love as man's greatest source of joy. And with death as his greatest source of anxiety.
I don’t think you can compare different eras. Every era has its own challenges and its own special things.
Leadership is about inspiring people to do things they never thought they could do.
A diploma is not necessarily can create a person, just as a prison may not be defeated every>
The measure of success is not just in yields, but in lives improved.
证明的严谨性将数学与所有其他科学区分开来。