Sustainability is not just about technology, it's about creating a whole new ecosystem.
后见之明对历史学家乃至回忆录作者非常有用,但遗憾的是,实践中的政治家却无法拥有。
I sing not because I am blind, but because I have a voice.
The people are the roots of the revolution. Without the people, the revolution cannot succeed.
每个孩子都应该玩泥饼、捉蚱蜢、玩水虫、养蝌蚪、抓青蛙、玩泥龟、采接骨木果、摘野草莓、捡橡子、采栗子、爬树、涉溪、赏睡莲、观察土拨鼠、蝙蝠、蜜蜂、蝴蝶,养各种小动物,在干草场玩耍,捡松果,滚石头,玩沙子,抓蛇,采越橘和胡蜂窝;任何被剥夺了这些乐趣的孩子,都被剥夺了教育中最美好的部分。
The key to success in research is to focus on fundamental problems that have long-term impact.