On the Canon, while the Letter to Menoikeos preserved in the tenth Book of Diogenes Laertios's Lives of the Eminent Philosophers expressed this school's ethics.
Nausiphanes's Tripod was reportedly a major influence on this philosophical school's epistemological treatise, On the Canon, while the Letter to Menoikeos preserved in the tenth Book of Diogenes Laertios's Lives of the Eminent Philosophers expressed this school's ethics. This school counted among its adherents, Cicero's friend Atticus, who heeded its call to avoid public life, and the poet Lucretius, who authored a didactic epic on it, De Rerum Natura. Named for its founder, who adopted the atomic theory of Leukippos and Demokritos, for 10 points, identify this philosophical school, which argued that ataraxia, or peace achieved to avoidance of pain, was the greatest good. 
Nausiphanes's Tripod was reportedly a major influence on this philosophical school's epistemological treatise,
Epicureanism