source: - Judith N. Shklar (1984). “Ordinary Vices”, p.44, Harvard University Press

source: - Judith N. Shklar, Stanley Hoffmann (1998). “Political Thought and Political Thinkers”, p.11, University of Chicago Press
source: - Judith N. Shklar, Bernard Yack (1996). “Liberalism Without Illusions: Essays on Liberal Theory and the Political Vision of Judith N. Shklar”, p.80, University of Chicago Press