The difference between correlation and causation is not just academic—it can have profound policy implications.

To write is to give voice to the voiceless.

The poet's mission is to illuminate the darkness.

艺术家必须是神圣的仆人。

The joy of mathematics comes from the struggle to understand.

没有付出，就没有收获。这是我的生活信条。

"The only thing to do with good advice is to pass it on. It is never of any use to oneself."

自由民主的成功取决于其制度适应变化环境的能力。

努力成就了你。如果现在不全力以赴，总有一天会后悔。不要觉得为时已晚，继续努力吧。