The physicality of the work is very important - it has to have a presence.

The coal industry is not just about digging the ground; it's about powering the future.

It's probably as unlikely that you would nowadays become as rich and famous as Bill Gates, as it was unlikely in the17th century that you would accede to the ranks of the French aristocracy. But the point is, it doesn't feel that way. It's made to feel, by magazines and other media outlets, that if you've got energy, a few bright ideas about technology, a garage -- you, too, could start a major thing.

经济历史的研究不仅仅是关于过去；它是关于理解当前不平等的根源。