Success is the sum of small efforts repeated day in and day out.

银河系中心是强引力下的一个独特的自然实验。

科学与社会的对话必须持续进行。

最终，我们都是凡人。

语言是我们拥有的最强大的武器。

We perceive the world in terms of its significance for action.

The most important political distinction among countries concerns not their form of government but their degree of government.

人们之所以加入社会是为了保护他们的财产。