a celebrated Peripatetic philosopher, born at Mytilene. After teaching philosophy in his native city, he removed to Athens, where Brutus and the son of Cicero became his disciples. He was the companion of Pompey in his flight from Pharsala, and endeavoured to comfort him by arguments drawn from philosophy. From a passage in Tertullian, De Anima, we may conclude that Cratippus was the author of a book on dreams, but no other work has been attributed to him.