Liberal democracy may constitute the "end point of mankind's ideological evolution" and the "final form of human government," and as such constituted the "end of history."

Sustainability in mining isn't an option—it's a necessity for our future.

"Books are the bridges between different worlds."

当孩子被放在自然环境里，他会显示出自己的能力。

"I write to escape the mirror, but I always end up finding it."

Chemistry is the poetry of logic and the logic of poetry.