Zoom Out, and You'll See People Are Improving - Room for Debate - NYTimes.com: It’s easy to focus on the idiocies of the present and forget those of the past. But a century ago our greatest writers extolled the beauty and holiness of war. Heroes like Theodore Roosevelt, Winston Churchill and Woodrow Wilson avowed racist beliefs that today would make people’s flesh crawl. Women were barred from juries in rape trials because supposedly they would be embarrassed by the testimony. Homosexuality was a felony. At various times, contraception, anesthesia, vaccination, life insurance and blood transfusion were considered immoral.
Ideals that today’s educated people take for granted — equal rights, free speech, and the primacy of human life over tradition, tribal loyalty and intuitions about purity — are radical breaks with the sensibilities of the past. These too are gifts of a widening application of reason.