The great powers are always searching for opportunities to gain power at the expense of their rivals, which makes them inherently aggressive.

自然的简单性不应以我们对简单性的概念来衡量。

梦想与现实之间的区别在于行动。

Science is a journey, not a destination.

Recycling should be the last resort, not the first solution. Better design comes first.

The only person you should try to be better than is the person you were yesterday.