Hedonism is the philosophic theory which holds pleasure to be the supreme good. The ancient Greek school of Aristippus and the Cyrenaics stressed the immediate happiness of the individual; the Epicurean school modified this by insisting that some consideration for others was necessary to happiness. Utilitarianism, a modern form of hedonism, has as its aim the collective happiness of men, the greatest good for the greatest number. Its leading exponents are: J. S. Mill, Bentham, Hume, and Sidgwick.