Download or read book Principal Doctrines written by Epicurus and published by Lulu.com. This book was released on 2017-10-05 with total page 45 pages. Available in PDF, EPUB and Kindle. Book excerpt: Epicurus posited a materialistic physics, in which pleasure, by which he meant freedom from pain, is the highest good. Serenity, the harmony of mind and body, is best achieved, through virtue and simple living.