John Stuart Mill (1867). “Speech of John Stuart Mill, M.P., on the Admission of Women to the Electoral Franchise: Spoken in the House of Commons, May 20th, 1867”, p.5
Immanuel Kant, James Wesley Ellington (1994). “Ethical Philosophy: The Complete Texts of Grounding for the Metaphysics of Morals, and Metaphysical Principles of Virtue, Part II of The Metaphysics of Morals, with On a Supposed Right to Lie Because of Philanthropic Concerns”, p.30, Hackett Publishing