"Why do we know what we know and why don't we know what we don't know? What should we know and what shouldn't we know? How might we know differently?"

“We live in a golden age of ignorance, and Trump and are part of that.”

“By contrast with diamonds or asbestos or granite or the minerals we burn for fuel, the lowly agate is the victim of scientific disinterest, the same kinds of structured apathy I have elsewhere called 'the social construction of ignorance.' Agates seem to fall outside the orbit of geological knowledge, and therefore tend to be regarded — if at all — as geological accidents or oddities not really deserving systematic study.”

“One topic that has only recently begun to attract attention is the Nazi anti-tobacco movement. Germany had the world's strongest anti-smoking movement in the 1930s and early 1940s, supported by Nazi medical and military leaders worried that tobacco might prove a hazard to the race. Many Nazi leaders were vocal opponents of smoking. Anti-tobacco activists pointed out that whereas Churchill, Stalin, and Roosevelt were all fond of tobacco, the three major fascist leaders of Europe -- Hitler, Mussolini, and Franco -- were all non-smokers”

“It is certainly true that, in one important sense, the Nazis sought to politicize the sciences.”

“The rejection of concern for practical goals expressed in the German Society for Sociology's founding charter represented the culmination of a debate in the Social Policy Association, the so-called Werturteilsstreit, in which a group of young political economists, including, Werner Sombart, and Max Weber, attacked the older generation of political economists for mixing facts and values, science and politics.”

“In early October of 1939, designated by the government as the year of "the duty to be healthy," Hitler authored a secret memo certifying that "Reichsleiter Bouhler and Dr Brandt are hereby commissioned to allow certain specified doctors to grant a mercy death to patients judged incurably sick, by critical medical examination.”