阅读只为心灵提供知识的材料；是思考使我们所读的东西成为我们自己的。

你无法改变过去，但可以从中吸取教训。

我不会为你而死，但我会把每一天都当作生命的最后一天来活。

In mathematics, the art of proposing a question must be held of higher value than solving it.

数学的目标不是解决问题，而是理解问题。

If you're not listening to your customers, you're already falling behind.

世界不是一个愿望实现的工厂。

我们通过DNA的线索彼此相连。

Every great and deep difficulty bears in itself its own solution. It forces us to change our thinking in order to find it.