The value of all things contracted for, is measured by the appetite of the contractors.

Dictatorship and authentic literature are incompatible. One must die for the other to survive.

不要让成功冲昏头脑，也不要让失败打击你的心。

The question is not whether the thing exists， but whether it has any essence which is capable of existence without us.

购买旧书，它们的词与新词相同，也可以去图书馆。

煤炭曾是工业进步的支柱，但其未来必须平衡经济需求与环境责任。