Aristippus of Cyrene (/ˌærəˈstɪpəs/; Greek: Ἀρίστιππος; c. 435 – c. 356 BCE) was the founder of the Cyrenaic school of Philosophy. He was a pupil of Socrates, but adopted a very different philosophical outlook, teaching that the goal of life was to seek pleasure by adapting circumstances to oneself and by maintaining proper control over both adversity and prosperity. Among his pupils was his daughter Arete.
Aristippus, the son of Aritades, was born at Cyrene, Ancient Libya, c. 435 BCE. He came over to Greece to be present at the Olympic games, where he fell in love with Ischomachus the agriculturist, and by his description was filled with so ardent a desire to see Socrates, that he went to Athens for the purpose, and remained with him almost up to the time of his execution, 399 BCE. Diodorus dates him to 366 BCE, which agrees very well with the facts known about him, and with the statement, that Lais, the courtesan with whom he was intimate, was born 421 BCE.
Though a disciple of Socrates, he wandered very far both in principle and practice from the teaching and example of his great master. He lived luxuriously, was happy to seek sensual gratification and the company of the notorious Lais. He also took money for his teaching, the first of Socrates' disciples to do so and even told Socrates that he resided in a foreign land in order to escape the trouble of involving himself in the politics of his native city. He passed part of his life at the court of Dionysius I of Syracuse or Dionysius the Younger, and is also said to have been taken prisoner by Artaphernes, the satrap who drove the Spartans from Rhodes, 396 BCE. He appears, however, at last to have returned to Cyrene, and there he spent his old age.
The anecdotes which are told of him (there are many in Diogenes Laërtius,) by no means give us the notion of a person who was the mere slave of his passions, but rather of one who took a pride in extracting enjoyment from all circumstances of every kind, and in controlling adversity and prosperity alike. They illustrate and confirm the two statements of Horace, that to observe the precepts of Aristippus is "to endeavour to adapt circumstances to myself, not myself to circumstances" and that, "every complexion of life, every station and circumstance sat gracefully upon him." Thus when reproached for his love of bodily indulgences, he answered, that "it is not abstinence（戒除） from pleasures that is best, but mastery over them without ever being worsted." When Dionysius, provoked at some of his remarks, ordered him to take the lowest place at table, he said, "You wish to dignify the seat."
Whether he was prisoner to a satrap, grossly insulted and even spit upon by a tyrant, enjoying the pleasures of a banquet or reviled for faithlessness to Socrates by his fellow-pupils, he maintained the same calm temper. He seemed insulting to Xenophon and Plato, as seen from the Memorabilia, where he maintains a discussion against Socrates in defence of voluptuous enjoyment, and from the Phaedo, where his absence at the death of Socrates, though he was only at Aegina, 200 stadia from Athens, is doubtless mentioned as a reproach. Aristotle, too, calls him a sophist, and notices a story of Plato speaking to him, with rather undue vehemence, and of his replying with calmness.
He imparted his doctrine to his daughter Arete who, in turn, imparted it to her son, Aristippus the Younger, who is said to have reduced it to a system. Diogenes Laërtius, on the authority of Sotion and Panaetius, gives a long list of books whose authorship is ascribed to Aristippus, though he also says that Sosicrates of Rhodes states that he wrote nothing. Some letters attributed to him are forgeries.