Passion, though a bad regulator, is a powerful spring. Any absorbing passion has the effect to deliver from the little coils and cares of every day: 'tis the heat which sets our human atoms spinning, overcomes the friction of crossing thresholds, and first addresses in society, and gives us a good start and speed, easy to continue, when once it is begun.
Bill Gates
When I was trying to figure out why lives have improved so much in the last 300 years, where we've gone from a third of kids dying before 5 to - by 1990 it was down to 10% - now it's down to 5%. And saying why, over all history, there were smart people, but that number didn't change. Average life span didn't change. What's magical about what's been deemed the Industrial Revolution? It's really energy intensity.
