The past is a foreign country; they do things differently there.

学习数学的最好方法就是去做数学。

数学家沉浸在他的符号洪流中，表面上处理纯粹的形式真理，仍然可能得出对我们描述物理宇宙具有无尽重要性的结果。

"The most beautiful people we have known are those who have known defeat, known suffering, known struggle, known loss, and have found their way out of the depths."

晏子春秋

在共和政府中，人人平等；在专制政府中，人人也平等：在前者中，因为他们是一切；在后者中，因为他们什么都不是。