The joy of mathematics is in the struggle to understand.
数学的乐趣在于努力理解的过程。
One does not ask of one who suffers: What is your country and what is your religion? One merely says: You suffer, that is enough for me.
贫困和无知可能逐渐消失的希望,很大程度上源于十九世纪工人阶级的稳步进步。
家人团结,才能无往不利。
情感是心理元素的化合反应。
对付一个不自由的世界的唯一方法,就是变得如此绝对自由,以至于你的存在本身就是一种反叛。