"Epicureanism was an atomistic and naturalistic approach to life that was promoted by its founder Epicurus (341–270 B.C.). Promoting a form of hedonism, Epicureans believed that pleasure is the beginning and end of a happy life. They held that there were two levels of pleasures. First, there were “satisfaction” desires such as food, drink, and sex. Second, there were deeper pleasures such as friendship that occur when the satisfaction desires were met. The Epicureans stressed retreat from a violent and cruel world and the importance of cultivating and maintaining friendships."