学习数学的唯一方法就是做数学。

The biggest risk is not taking any risk. In a world that is changing quickly, the only strategy that is guaranteed to fail is not taking risks.

The beauty of life is, while we cannot undo what is done, we can see it, understand it, learn from it and change. So that every new moment is spent not in regret, guilt, fear or anger, but in wisdom, understanding and love.

书籍是飞机，是火车，是道路。它们是目的地，也是旅程。它们是家。

如果没有冬天的寒冷来赋予它甜蜜，夏天的温暖又有什么意义呢？

"The only way to deal with an unfree world is to become so absolutely free that your very existence is an act of rebellion."

言语当然是人类使用的最强效的药物。

世界通常不在海滩和乡村俱乐部里生活。