This book explores a much-neglected area of moral philosophy--the typology of immorality. Ronald D. Milo questions the adequacy of Aristotle's suggestion that there are two basic types of immorality--wickedness and moral weakness--and argues that we must distinguish between at least six different types of immoral behavior. Originally published in 1984. The Princeton Legacy Library uses the latest print-on-demand technology to again make available previously out-of-print books from the distinguished backlist of Princeton University Press. These editions preserve the original texts of these important books while presenting them in durable paperback and hardcover editions. The goal of the Princeton Legacy Library is to vastly increase access to the rich scholarly heritage found in the thousands of books published by Princeton University Press since its founding in 1905.