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Every mathematical problem is a puzzle waiting to be solved, and every solution is a step closer to understanding the fabric of reality.

一切都是一個學(xué)習(xí)的過程：每次你跌倒，它只是在教你下次站起來。

真正的英雄是那些即使害怕也堅持戰(zhàn)斗的人。

Propaganda is to a democracy what the bludgeon is to a totalitarian state.

To be a philosopher is not merely to have subtle thoughts, nor even to found a school, but so to love wisdom as to live according to its dictates.

改變心態(tài)只需一分鐘，而這一分鐘卻能改變一整天。