Perhaps the most salient critique of the absurdity of the situation came from Erasmus of Rotterdam, the most reputable Christian humanist of the day. His The Praise of Folly (1509) was a scathing exposé of all the clichés of superficial Medieval spirituality—pilgrimages, relics, physical self-punishment (such as auto-flagellation), fasts, the corruption of so many monasteries and convents, and the flagrant wealth and exploitation of the laity by the church hierarchy. He wrote the book as a satire in order to avoid censure and condemnation as a heretic for his exposition, and he got away with it.