A look at the ideas, battles, and legacy of the most important 19th and 20th century champions of liberty such as Mill, Mises, Hayek, Friedman, Rothbard, Rand, Nozick, Buchanan, and Tullock. How did these thought leaders advance liberty in the face of violent totalitarianism and creeping statism? How did they address their challengers like Keynes, Rawls, and Cohen? Finally, who will carry their legacy into the 21st century? This seminar is ideal for IHS summer seminar alumni and students who are familiar with the libertarian conceptual framework.