- Reasonable Atheism: A Moral Case For Respectful Disbelief
- Overdoing Democracy: Why We Must Put Politics in Its Place
- Why We Argue (and How We Should): A Guide to Political Disagreement
- Dewey's Logical Theory: New Studies & Interpretations (The Vanderbilt Library of American Philosophy)
- Sidney Hook on Pragmatism, Democracy and Freedom: The Essential Essays
- Robert M. Pirsig
- Friedrich Nietzsche
- Thomas C. Foster
- Elisabetta Dami
- Christopher Hitchens
- Charles Darwin
- Thomas Paine
- Nelson Mandela
- Sam Harris
- Bertrand Russell
- Daniel Todd Gilbert
- David Hume
- Nanette McGuinness
- Susan Jacoby
- George H. Smith
- Michel Onfray
- Joseph R. Conlin
- Alice Hudson
- Abraham Skorka
- Scott F. Aikin