The only thing we have to fear is fear itself.
一个人是危险的,一个没有什么可失去的人更危险。
我们正处于历史上一个独特的阶段。我们从未如此清楚地意识到我们对地球所做的一切,也从未有过能力对此采取行动。
The difference between theory and practice is that in theory, there is no difference between theory and practice, but in practice, there is.