数学的研究就像空气或重力——它无处不在，即使你看不到它。

The wise seek happiness within their own souls, while fools search outside.

People are just as wonderful as sunsets if you let them be. When I look at a sunset, I don't find myself saying, 'Soften the orange a bit on the right hand corner.' I don't try to control a sunset. I watch with awe as it unfolds.

要注重方向而非盲目努力

历史感不仅包含对过去之过去的感知，还包含对过去之现在的感知。

Sometimes, the most heroic act is to continue living.

在人类（以及动物）的漫长历史中，学会最有效合作与应变的人最终胜出。