Statue of the 18th-century philosopher David Hume on the Royal Mile, Edinburgh: ‘Hume . . . is probably not much more implicated in the slave trade than many of us are today,’ says his latest biographer Julian Baggini. Photograph: Jane Barlow/PA

Scientists who are dismissive of philosophers generally still have a soft spot for David Hume. He is one of those Enlightenment thinkers who is decide(...)