1. Annas, J. (2012). Practical expertise. In J. Bengson & M. A. Moffett (Eds.), Knowing how: Essays on knowledge, mind, and action. Oxford: Oxford University Press.
2. Bird, A. (2010). Causation and the manifestation of powers. In A. Marmodoro (Ed.), The metaphysics of powers. New York: Routledge.
3. Bradford, G. (2013). The value of achievements. Pacific Philosophical Quarterly, 94, 204–224.
4. Brogaard, B., & Smith, B. (2005). On luck, responsibility and the meaning of life. Philosophical Papers, 34, 443–458.
5. Gettier, E. (1963). Is justified true belief knowledge? Analysis, 23, 121–123.