In the end， we will remember not the words of our enemies， but the silence of our friends.

让它落下来吧，即使箭头会刺进我的心里。

I owe nothing to Women's Lib.

The most beautiful as well as the most ugly inclinations of man are not part of a fixed biologically given nature, but result from the social process which creates man.

我们今天关于海洋资源的每一个决定都会产生涟漪，影响子孙后代。

We change our behavior when the pain of staying the same becomes greater than the pain of changing. Consequences give us the pain that motivates us to change.

The joy of chemistry is in seeing the invisible become visible.