Because of her recent book The Future and Its Enemies. His free market philosophy continued to spread and flourish and has been responsible for considerable economic and political reform nationally and internationally. She provided a consistent philosophical foundation for libertarian ideas. Because He risked it all in the Garden of Eden. He's shown that people don't have to have a great formal education or be well off to do something for the cause of liberty.
Ordinary people thrown into extraordinary circumstances can do great work for freedom.
He taught the methods of inquiry and criterion of truth that allowed man to break free from the chains of State power over speech, the press, and voluntary action. Without Galileo, Thomas Jefferson, James Madison, the Enlightenment, and Libertarianism would be unthinkable. Bumper can't be bought because he has no price. Resolute and unflinching. What he had to say is always enlightening and stimulating.