1. Adams, H. (1891). History of the United States of America during the second administration of Thomas Jefferson (Vol. 2). London: G.P. Putnam’s Sons.
2. Alford, J. R., Funk, C. L., & Hibbing, J. R. (2005). Are political orientations genetically transmitted? American Political Science Review, 99, 153–167.
3. Aristotle. (1941). The basic works of Aristotle (Ed. Richard McKeon). New York: Random House.
4. Ayer, A. J. (1952). Language, truth, and logic. New York: Dover.
5. Bealer, G. (1992). The incoherence of empiricism. Proceedings of the Aristotelian Society, 66(supplement), 99–138.