The Praise of Folly is the most enduring and popular work of one of the greatest Renaissance humanists, Desiderius Erasmus of Rotterdam. Immensely popular in its own day, the work is a witty and often biting satire that offers an ironic appreciation of human vice and frivolity. The Praise of Folly, however, is not only an entertaining indictment of social mores, but also a moving declaration of Erasmus Christian idealism. Although it is a product of the sixteenth century, The Praise of Folly remains to this day an insightful and relevant work of moral philosophy and social criticism.