"The first I heard of Tony Cliff, who has died aged 82, was from Gus Macdonald, now Lord Macdonald, Minister of Transport. ... In late 1961, he reckoned it was time the Young Socialists took some serious lessons in Marxist theory, and arranged a weekend school to be addressed by two leaders of an obscure Trotskyist sect called the International Socialists. Gus and I met the couple in an airport lounge. I can still see them coming in: Mikhael Kidron, smart, suave, urbane, and Tony Cliff, short and scruffy, looking and sounding like a rag doll. As we mumbled through the niceties of introductions, the rag doll looked irritated and shy. We climbed into a taxi. As we did so, I saw a newspaper poster about events in the Congo, and remarked, partly to break the silence, that I'd never really understood the Congo. Quick as a flash, the rag doll came to life, and started jabbering with amazing speed and energy. I can't remember exactly what he said, but I do remember my clouds of doubt and misunderstanding suddenly disappearing and the role of the contestants in the Congo, including the United Nations, becoming brutally clear."