 This giant who helped carry on their tradition and who I've walked through some of y'all's library before and I've seen a lot of his old books with writings in the margins. I'm personally a big fan of H.L. Mencken, so to be able to sit there and read Mencken and see in the margins the handwriting of a gentleman named Murray Rothbard is quite amazing to me. Who was Rothbard and how did he help carry on Mises' tradition?