The Age of Ideology Author:Henry D. Aiken Basic writings of: Kant, Fichte, Schopenhauer, Comte, Mill, Spencer, Marx, Mach, Nietzsche, Kierkegaard, Hegel. Selected, with introduction and commentary, by Henry D. Aiken. — This outstanding volume in The Mentors philosophy series presents a new interpretation of the philosophical conflicts of the 19th century. . . The Age of Ideology shows th... more »e radical shift in 19th century thinking from traditional philosophical paths of reasoning and subject matter to an emphasis on subjectivity.« less