It is sadder to find the past again and find it inadequate to the present than it is to have it elude you and remain forever a harmonious conception of memory.

Sustainable development is not an option, but a necessity for the coal sector.

一幅画首先必须关乎它自身，而不是其他东西。

The Langlands program is a framework for understanding the deeper structures of mathematics.

成为一名作家就是在每天的寒冷时分坐在书桌前写作；不等待从胸骨中喷出的蓝色天才火焰。