Epicureanism is the philosophy founded by Epicurus of Samos. Its physics are based on atomic materialism, and its ethics are based on the rational, calculated pursuit of pleasure as described in Epicurus' Letter to Menoeceus.
Its canon literature includes the Principal Doctrines, the Vatican Sayings, the Letters to Menoeceus, Pythocles, and Herodotus, as well as Lucretius' epic poem De Rerum Natura (On the Nature of Things). Frances Wright's novel A Few Days in Athens is perhaps the greatest work of Epicurean philosophy in the English language. Contemporary Epicureans include Thomas Jefferson and Christopher Hitchens.