Fifty years ago, when I was a boy, it seemed completely self-evident that the bad old days were over, that torture and massacre, slavery, and the persecution of heretics, were things of the past. Among people who wore top hats, traveled in trains, and took a bath every morning such horrors were simply out of the question. After all, we were living in the twentieth century. A few years later these people who took daily baths and went to church in top hats were committing atrocities on a scale undreamed of by the benighted Africans and Asiatics. In the light of recent history it would be foolish to suppose that this sort of thing cannot happen again. It can and, no doubt, it will.
Aldous Huxley: Brave New World Revisited