一个人的心灵美好，是不可能掩蔽的，这会表现在形体容貌上，也能在神色上看得出来。

The joy of solving a mathematical problem is unparalleled; it is a moment of pure intellectual triumph.

Mental activity is the organism's dialogue with its environment.

Climate change is the greatest challenge agriculture has ever faced, but also its greatest opportunity for reinvention.

I'm just like anyone. I cut and I bleed. And I embarrass easily.

真相很少是纯粹的，也从来不是简单的。