Hedonism (Greek hedone, 'pleasure'), in philosophy, the doctrine that
pleasure is the sole or chief good in life and that the pursuit of it is the
ideal aim of conduct. Two important hedonistic theories were expounded in
ancient Greece. The Cyrenaics, or egoistic hedonists, espoused a doctrine in
which gratification of one's immediate personal desires, without regard for
other persons, is considered the supreme end of existence. Knowledge,
according to the Cyrenaics, is rooted in the fleeting sensations of the
moment, and it is therefore futile to attempt the formulation of a system of
moral values in which the desirability of present pleasures is weighed
against the pain they may cause in the future. Unlike the egoistic
hedonists, the Epicureans, or rational hedonists, contended that the true
pleasure is attainable only by reason. They stressed the virtues of
self-control and prudence. Both doctrines survived practically without
change until modern times. In the 18th and 19th centuries such British
philosophers as Jeremy Bentham, James Mill, and John Stuart Mill propounded
the doctrine of universalistic hedonism, better known as utilitarianism.
According to this theory, the ultimate criterion of human behavior is the
good of society, and the guiding principle of individual moral conduct is
allegiance to that which procures and promotes the welfare of the greatest
number of people.