Murray Rothbard's contributions to libertarian/Voluntaryist philosophy are incredible. If you've never picked up a book of his, I highly recommend this solid yet concise introduction to his work:
The Ethics of Liberty by Murray Rothbard
https://amzn.to/2WNPMZ3
You can get your own Rothbard tee here: http://bit.ly/2NIp8gt
#rothbard #mises #misesinstitute #austrianeconomics #libertarian #ancap