Nor is our newfound sophistication confined to science. 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.