1. Aristotle, Nicomachean Ethics.
2. Bodanszky, E. and Conee, E. (1981), ‘Isolating Intrinsic Value’, Analysis 41, 51–53 [* pp. 11–13 of this volume].
3. Bradley, B. (1998), Species of Goodness, University of Massachusetts.
4. Brandt, R. (1967), ‘Hedonism’, in P. Edwards (ed.), The Encyclopedia of Philosophy, vol. 4, New York: Macmillan Publishing Co. & The Free Press, pp. 432–435.
5. Chisholm, R. (1986), Brentano and Intrinsic Value, Cambridge: Cambridge University Press.