"The world is full of obvious things which nobody by any chance ever observes."

爱是由心灵衡量的空间和时间。

The art of teaching consists in large part of the ability to awaken the natural curiosity of young minds and to satisfy it with the nourishment of knowledge.

Innovation in mining isn't optional—it's survival.

"Understanding the past is essential to shaping the future."

An expert is a person who has made all the mistakes that can be made in a very narrow field.

技术是工具，人才是核心。