1. [Aristotle,-]: Aristotle, Nichomachean Ethics.
2. [Bernstein, 1985]: Richard J. Bernstein, Beyond Objectivism and Relativism. Philadelphia: University of Pennsylvania Press, 1985.
3. [d'Espagnat, 1981]: Bernard d'Espagnat, A la Recherche du Réel. Paris: Bordas, 1981. Chapitre 5.
4. [Fujisawa, 1974]: N. Fujisawa, “Echein, Metechin, and Idioms of Paradigmatism in Plato's Theory of Forms.” Phronesis, V. XIX, No. 1, 1974.
5. [Gadamer, 1975]: Hans-Georg Gadamer, Wahrheit und Methode. English translation by Barden and Cummin, Truth and Method. New York: Seabury Press, 1975.