“‘The greatest living theoretical physicist’ – many commentators in the past few decades have described Steven Weinberg in such terms. When I rather cheekily asked him what he thought of that statement, he shot back: ‘It is quite ridiculous to rank scientists like that’, adding with a twinkle in his eye, ‘but it would be impolite to dispute the conclusion’. That reply was classic Weinberg: self-aware, intimidatingly direct but always ready to lighten the moment with humour.”