Some significant receptions of Epicurean philosophy take place in nineteenth century European thought. For Marx, writing in the 1840s, and in defiance of Hegel’s negative assessment, Epicurus is the ‘greatest representative of the Greek enlightenment’,1 whilst for Jean-Marie Guyau, writing in the 1870s, Epicurus is the original free spirit, ‘Still today it is the spirit of old Epicurus who, combined with new doctrines, works away at and undermines Christianity.’ 2 For Nietzsche, Epicurus is one of the greatest human beings to (...) have graced the earth and the inventor of ‘heroic-idyllic philosophizing’.3 Here my focus is on the reading of Epicureanism to be found in Bergson’s commentary on Lucretius’s remarkable poem, De Rerum Natura. For Bergson the task Lucretius sets himself is a ‘pioneering one’, one that will serve humanity, in particular making the Romans aware of previously unknown or misunderstood truths. In order to demonstrate these truths with precision it was necessary for Lucretius to be acquainted with Greek philosophy, and especially the teaching of Epicurus. (shrink)