He walked out in the gray light and stood and he saw for a brief moment the absolute truth of the world. The cold relentless circling of the intestate earth. Darkness implacable. The blind dogs of the sun in their running. The crushing black vacuum of the universe. And somewhere two hunted animals trembling like ground-foxes in their cover. Borrowed time and borrowed world and borrowed eyes with which to sorrow it.

适当的引导是一个矛盾。

只要是利益他人的事情，就要坚持做下去；只要是不利于别人的事情，就要马上停止不做。

循环经济不是一种选择——对于希望在未来十年蓬勃发展的行业来说，这是唯一的前进方向。

技术将重新定义我们如何开采和利用煤炭资源。