我们被要求的不是成功，而是忠诚。

I cannot fix on the hour, or the spot, or the look, or the words, which laid the foundation. It is too long ago. I was in the middle before I knew that I had begun.

最好的投资是那些能够改变世界的人。

我相信故事有治愈的力量。

Psychology must be free from all metaphysical entanglements.

Happiness in intelligent people is the rarest thing I know.

Collaboration in mathematics is essential; the exchange of ideas leads to breakthroughs that no single mind could achieve alone.