Sustainability isn't an option—it's a responsibility we owe to future generations.
社会系统是个人与个人之间、群体与群体之间关系的网络。
The secret of change is to focus all of your energy not on fighting the old, but on building the new.
在语言中,词语和它们所指的事物之间没有一对一的对应关系。
伤口是光进入你身体的地方。
购物可以说是最后剩下的公共活动形式。