过去并非异国,而是我们自己。
The past is not a foreign country; it is our own.
Every tyrant who has lived has believed in freedom--for himself.
不学《诗经》,就无法表达自己的意思;不学习《礼记》,就无法在社会中立足。
可持续性不仅仅是一个流行词;它是负责任的采矿的基础。