From Epicurus and His Philosophy: Page 67 - Epicurus was in revolt also against the teachings of Democritus, Socrates, Plato, and the rest concerning the function of philosophy. The Phi Beta Kappa idea that "Philosophy is the guide of life" was already commonplace, but no one was interpreting it very practically, To the great atomist Leucippus, Epicurus even denied right to the name of philosopher, because he concerned himself with physics to the exclusion of ethics. The ground upon which this w…