可持续性不是一种选择,而是我们对下一代的责任。
我们必须设计本质上是恢复性和再生性的系统。
The obligation of subjects to the sovereign is understood to last as long, and no longer, than the power lasteth by which he is able to protect them.
Happiness is not something ready-made. It comes from your own actions.
人们思考得越少,他们说得越多。