The human spirit is stronger than anything that can happen to it.
Sometimes you have to go through the darkness to get to the light.
The most important thing in mathematics is to ask the right questions.
“我们是我们反复做的事情。因此,卓越不是一种行为,而是一种习惯。”
A Book of Verses underneath the Bough, A Jug of Wine, a Loaf of Bread—and Thou Beside me singing in the Wilderness— Oh, Wilderness were Paradise enow!