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

Freedom is the recognition of necessity.

释义：一个人即使一生都很聪明，也可能在某个时刻犯糊涂。

科学是基础，但同情心是我们行业的灵魂。

Sustainability isn't a cost—it's an investment in our future.

在数学中，你不是理解事物，你只是习惯了它们。