"Imagination is more important than knowledge. Knowledge is limited. Imagination encircles the world."

"In war, the first casualty is truth."

黄昏是一天中最美好的时光。你已经完成了白天的工作，现在可以翘起脚来享受它了。

You have to believe in yourself when no one else does. That's what makes you a winner.

Faith is a living, daring confidence in God's grace, so sure and certain that a man could stake his life on it a thousand times.

数学的本质在于它的自由。