In mining, efficiency and environmental care must go hand in hand.

Learning is the process of modifying symbolic structures to improve performance.

我坐在黑暗中。很难弄清楚什么更糟糕：里面的黑暗还是外面的黑暗？

我们必须建设天生绿色的网络，而不仅仅是改造为绿色。

I think the most important thing in life is to dare to dream.

你与目标之间唯一的障碍是你不断告诉自己为什么不能实现它的故事。