Đọc thêm Tâm lý vị kỷ

  • Baier, Kurt (1990). "Egoism" in A Companion to Ethics, Peter Singer (ed.), Blackwell: Oxford.
  • Batson, C.D. & L. Shaw (1991). "Evidence for Altruism: Toward a Pluralism of Prosocial Motives," Psychological Inquiry 2: 107-122.
  • Broad, C. D. (1971). "Egoism as a Theory of Human Motives," in his Broad's Critical Essays in Moral Philosophy, London: George Allen and Unwin.
  • Hobbes, Thomas (1651). Leviathan, C. B. Macpherson (ed.), Harmondsworth: Penguin.
  • Hobbes, Thomas (1654). Of Liberty and Necessity, public domain.
  • Krebs, Dennis (1982). "Psychological Approaches to Altruism: An Evaluation". Ethics, 92, pp. 447–58.
  • May, Joshua (2011). "Psychological Egoism", The Internet Encyclopedia of Philosophy, J. Fieser & B. Dowden (eds.). (link)