The Lives and Opinions of Eminent Philosophers

by Diogenes Laërtius

Diogenes Laërtius was a biographer of the Greek philosophers. Little is definitively known about his life, but his surviving work, Lives and Opinions of Eminent Philosophers, remains a primary source for the history of ancient Greek philosophy. His reputation is controversial among scholars because he often repeats information from his sources without critically evaluating it.