John F. Kennedy

The quotes that circulate from him tend to be about reaching for something difficult before you know how to do it — the language of space ambition, and of a Cold War that had to be managed rather than won outright. Those two subjects are what John F. Kennedy is remembered for, and they are also where his words did the most work: framing questions rather than closing them.

He was born in Brookline, Massachusetts, in May 1917, and worked as both a politician and a journalist. The habits that show up in his public material — careful exposition, an insistence on saying the thing precisely — were developed early. His earlier output paired conceptual rigour with attention to how an argument actually lands on a listener; later work took on wider historical, social and technical problems, and the ambition of the writing widened with it.

Disagreement seems to have sharpened him. Argument with opponents forced tighter statements of principle, and by his later years he had become a fixed point others measured themselves against — someone holding a line between doing something new and keeping faith with what came before. He died on 22 November 1963. What survives is not only a record but a way of asking questions, which is why the material still gets quoted.