工作中的快乐使工作完美。
1985年2月的一次演讲时所说
The coal industry is not just about digging rocks; it's about powering lives and fueling progress.
"Silence can be more powerful than words."
"In the study of algorithms, we often find that the most efficient solutions are also the most elegant."
哲学问题的形式是：‘我不知道我该怎么做。’
Ihate people who talk about themselves, as you do, when one wants to talk about oneself, as I do.