我们今天选择的材料将成为我们明天留下的遗产。

科学中最重要的不是获得新的事实，而是发现新的思考方式。

Productivity is often a distraction. Don’t aim for better ways to get through your tasks as quickly as possible， rather aim for better tasks that you never want to stop doing.

I always knew I wanted to be a singer, and I never let anybody tell me I couldn't.

To speak is to risk, but to be silent is to risk more.

The spread of liberal democracy and the integration of the world economy are the two main forces driving the world towards the end of history.

国际体系的结构迫使国家以某种方式行事，无论其内部特征如何。