计算的本质在于信息的转换。
The essence of computation lies in the transformation of information.
We are all made of star-stuff, and through physics, we seek to understand our origins.
我们不是在创造物体，而是在创造场所。
Chemistry is the science of matter, but I prefer to see it as the science of change.
The nightmare thought is that frightening people is the best way to get work out of them, and that somehow the crueler the environment, the more people will rise to the challenge. You want to think, who would you like as your ideal dad? And your ideal dad is somebody who is tough but gentle. And it's a very hard line to make. We need fathers, as it were, the exemplary father figures in society, avoiding the two extremes, which is the authoritarian disciplinarian on the one hand, and on the other, the lax, no-rules option.
Leadership is a two-way street, loyalty up and loyalty down. Respect for one's superiors; care for one's crew.
Life can only be understood backwards; but it must be lived forwards.
Coal mining is a partnership between the earth and human ingenuity.