Act only according to that maxim whereby you can at the same time will that it should become a universal law.
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
