Coal keeps America competitive in the world.
煤炭使美国在世界范围内保持竞争力。
If you say you want to automate cars and save people’s lives, the skills you need for that aren’t taught in any particular discipline. I know – I was interested in working on automating cars when I was a Ph.D. student in 1995.
You have to have confidence in your ability, and then be tough enough to follow through.
The quarries we rehabilitate best become assets our grandchildren will thank us for.
人生苦短，不要带着遗憾醒来。
知识的最大敌人不是无知，而是知识的幻觉。