Robert Fogel

People want more and more leisure time, which means the freedom to do what they want to do, not what they have to do, and as we get richer and richer, more and more people will be able to afford that.

The rate of technological and human physiological change in the 20th century has been remarkable. Beyond that, a synergy between the improved technology and physiology is more than the simple addition of the two.

The first, and overarching, count in the new indictment is that slavery permitted one group of people to exercise unrestrained personal domination over another group of people.