How did one of the greatest philosophers who ever lived get so much wrong? David Hume certainly deserves his place in the philosophers’ pantheon, but when it comes to politics, he erred time and again. The 18th-century giant of the Scottish Enlightenment was sceptical of democracy and—despite his reputation as “the great infidel”—in favour of an established church. He was iffy on the equality of women and notoriously racist. He took part in a pointless military raid on France without publicly questioning its legitimacy.