Alfons Sllner   In prestigious German universities, Alfons Sllner performed studies on political science, philosophy and sociology, and he developed his labor as a professor of political theory and history of ideas. Some of the articles gathered in this book were presented on the Seminar Criticism to Politics: The Political Theories of the Immigrants, sponsored by the UAM (Metropolitan Autonomous University) Iztapalapa, the DAAD (German Service of Academic Exchange) and the Institute Goethe of Mexico.