Kieran Setiya

In August​ 1977, the New York Times ran a profile of the philosopher Saul Kripke, then 36 years old. Aged 17, he had proved a new result in modal logic – the logic of necessity and possibility – by building a mathematical model of ‘possible worlds’. He went on to transform philosophy, reviving dormant metaphysical questions. What makes us the particular people we are?...

Picture,​ if you can, a single person with the talents of Keats, Schubert and Seurat: an inspired poet, a prodigious composer, a revolutionary painter, a figure of unlimited promise who died, like them, in his youthful prime. If you replace poetry, music and painting with mathematics, economics and philosophy, the person you end up with is Frank Plumpton Ramsey. A fellow of King’s...