材料的重量决定了形式。

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

I try to listen to what the site is saying. I don't impose my will on it.

能源需求与环境保护之间的平衡是我们这个时代的挑战。

幸福不是相信我们不需要改变；而是意识到我们可以改变。