Diogenes Laërtius

Diogenes Laërtius is known almost exclusively through his major work, "The Lives and Opinions of Eminent Philosophers," a compilation of biographical sketches and doctrines of Greek thinkers from the pre-Socratics through the early Hellenistic period. Little is known of his own life; he likely wrote in the first half of the 3rd century CE, possibly in Bithynia or Rome. His work is not a critical history but a valuable anthology of anecdotes, letters, and doxographical material, preserving fragments of lost texts and traditions. Despite its occasional unreliability, it remains an indispensable resource for scholars of ancient philosophy, offering unique insights into the lives and teachings of figures such as Socrates, Plato, Aristotle, and Epicurus. Diogenes Laërtius's literary legacy lies in his role as a primary conduit through which much of our knowledge of early Greek philosophy has been transmitted.