On Diogenes

Yet his [Diogenes the Cynic] cleverness in debate, his witty asperities, and his cussed integrity evidently made him beloved by Athenians. He also has modern appeal—not as a Mr. Natural avant la lettre, but rather as an opponent of all things tribal and provincial. When asked where he came from, he declared (using the Greek term cosmopolites), ‘I’m a citizen of the world.’ When asked what he found most beautiful, he said, ‘Freedom of speech.’ As a model of his philosophy, which emphasized praxis over abstract theorizing, he made a strong impression on his biographer, who concludes, ‘Such were his views and he clearly acted in accordance with them.’

Jim Holt, "Lovers of Wisdom" - nybooks.com/articles/2018/07/19/lovers-of-wisdom-laertius-philosophers/. Interesting summary of a recent translation of Diogenes Laertius's third century CE Lives of the Eminent Philosophers. Laertius is not to be confused with the fourth century BCE Diogenes summarized above. But his account of past philosophers nonetheless continues to inspire us "to ponder what some future Diogenes Laertius might make of the present philosophical era. Which figures would strike him as models for living? Whose dramatic public gestures, whose devastating coruscations would he record? Who would strike him as a 'philosopher' in the original Pythagorean sense: a lover of wisdom?"