Plato (l. 428/427 - 348/347 BCE) is considered the pre-eminent Greek philosopher, known for his Dialogues and for founding his Academy north of Athens, traditionally considered the first university in the western world. Born Aristocles, son of Ariston of the deme Colytus, Plato had two older brothers (Adeimantus and Glaucon), who both feature famously in Plato's dialogue Republic, and a sister Potone. He is known by the nickname 'Plato' which, according to Diogenes Laertius (3rd century CE), was given him by his wrestling coach because of his broad shoulders (in Greek 'Platon' means broad). His family was aristocratic and well-connected politically and it seems Plato was expected to pursue a career in politics. His interests, however, tended more toward the arts and, in his youth, he wrote plays and, perhaps, poetry. “When two friends, like you and me, are in the mood to chat, we have to go about it in a gentler and more dialectical way. By ‘more dialectical’, I mean not only that we give real responses, but that we base our responses solely on what the interlocutor admits that he himself knows.” -Plato