John Stuart Mill (2008). “Utilitarianism and On Liberty: Including 'Essay on Bentham' and Selections from the Writings of Jeremy Bentham and John Austin”, p.187, John Wiley & Sons
John Stuart Mill (2017). “The Greatest Happiness Principle - Utilitarianism, On Liberty & The Subjection of Women: The Principle of the Greatest-Happiness: What Is Utilitarianism (Proofs & Principles), Civil & Social Liberty, Liberty of Thought, Individuality & Individual Freedom, Utilitarian Feminism”, p.148, Madison & Adams