我总是告诉我的学生,犯错是可以的,只要你从中学习。
I always tell my students that it's okay to make mistakes, as long as you learn from them.
We are all in the gutter, but some of us are looking at the stars.
矿业必须以可持续发展为核心进化,否则我们可能被淘汰。
The universe is a vast and mysterious place, and we are only beginning to understand its complexities.