Jefferson's intellectual range — spanning classical scholarship, natural history, architecture, philosophy, law, and meteorology — made him the emblematic genius of his age, the 'universal man' of the American Enlightenment.
Tom Holland describes Jefferson's extraordinary range of talents and interests, citing Kenneth Clark's characterization of him in the BBC series Civilization as history's 'universal man.'
transcript
Tom Holland: Kenneth Clark in civilization the landmark BBC series in the episode on the revolutionary era he described Jefferson as the emblematic genius of the age he described him as a universal man and when you look at the range of Jefferson's accomplishments you can see what Clark was on about