James Burnett, Lord Monboddo’s (1714–1799) contribution to Scottish Enlightenment thinking on race is regularly held to be twofold. As a Lord of Session, he supposedly defended slavery on Aristotelian grounds, infamously voting against Joseph Knight’s freedom in Knight v. Wedderburn (1778). In his philosophical writings, Monboddo is known for his arguments in favour of the humanity of orangutangs, which scholars have claimed informed both his own views on slavery and also wider apologetics for the trade. At the same time, Monboddo (...) is frequently cited as providing a fulsome defence of the achievements of black Africans against Hume’s footnote in ‘Of Natural Characters’ (added in 1753). The full significance of Monboddo’s counterexample to Hume’s claims, the civilization of black ancient Egypt, has not been adequately understood. In this article I undertake a deep dive into Monboddo’s views on race, slavery, and the black origins of civilization present in his largely ignored six-volume Antient Metaphysics (1779–1799). The arguments that emerge show that Monboddo was not quite the apologist for enslaving black Africans as he is sometimes presented as being, but also that his thought was far from the enlightened Scottish mainstream. (shrink)