Book excerpt: Here is the first full-length biography of Herbert Croly (1869-1930), one of the major American social thinkers of the twentieth century. David W. Levy explains the origins and impact of Croly's penetrating analysis of American life and tells the story of a career that included his founding of one of the most influential journals of the period, The New Republic, in 1914 and his writing of The Promise of American Life (1909), a landmark in the history of American ideas. 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.