Demetrius the Cynic was a Greek philosopher of the 4th century BC who is best known for his ascetic lifestyle and his cynical outlook on life. This biography explores his life and philosophy, examining his influence on later generations of philosophers and his impact on the development
From Wikipedia
Demetrius, a Cynic philosopher from Corinth, who lived in Rome during the reigns of Caligula, Nero and Vespasian.