Friedrich Nietzsche: Jenseits von Gut und Böse (Frankfurt/M.: Insel Verlag, 1984, eller andre utgaver) (eng. overs. "Beyond Good and Evil"), kapitlene 1-7;
Søren Kierkegaard, "Sygdommen til døden", i Samlede værker, bind 15 (København: Gyldendal, 1964);
Richard J. Bernstein, Praxis and Action (The University of California Press, 1971), part three: Action, conduct, and inquiry (Peirce and Dewey);
Ernst Tugendhat: Self-consciousness and Slef-determination, (1979/1986), kap. 1,2,7.
Harry G. Frankfurt: "Freedom and the Will and the Concept of a Person", i John Martin Fischer: Moral responsability (1986)
Alexander Nehamas: Nietzsche. Life as Literature (1985), kap. 2 og 6.
Charles S. Peirce: "The Fixation of Belief" (1877)