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The only service a friend can really render is to keep up your courage by holding up to you a mirror in which you can see a noble image of yourself.

戰勝死亡的唯一方法是通過故事。

數學不是關于數字、方程、計算或算法的：它是關于理解的。

"We are all astronauts on a little spaceship called Earth."

一本書是與死者的對話。