I’d tell men and women in their mid-twenties not to settle for a job or a profession or even a career. Seek a calling. Even if you don’t know what that means, seek it. If you’re following your calling, the fatigue will be easier to bear, the disappointments will be fuel, the highs will be like nothing you’ve ever felt.

材料选择艺术家，正如艺术家选择材料。

心理学是研究心理过程的科学。

在科学中，最美丽的时刻往往来自意想不到的结果。

Every mathematical problem is a puzzle waiting to be solved, and every solution is a step towards greater understanding.