今天种下的每一棵树，都是对明天的承诺。

我不知道你是否清楚自己是个怎样的人，直到你迷失了自我。

Technology is nothing. What's important is that you have a faith in people, that they're basically good and smart, and if you give them tools, they'll do wonderful things with them.

The best way to predict your future is to create it.

——1963年6月25日在西德市政厅柏林墙前的演说

文字的力量是巨大的；它们可以治愈，可以毁灭，可以创造世界。