John Stuart Mills Utilitarianism stands as a cornerstone in the realm of ethical philosophy, offering a compelling defense of utilitarianism. Originally published as a series of three articles in Frasers Magazine in 1861, these writings were later compiled into a single book in 1863. Over his lifetime, Mill revised and released the work through four editions, each adding nuanced insights. While Mill touches on utilitarian principles in other notable works like On Liberty and The Subjection of Women, Utilitarianism is where he delivers his most comprehensive exploration of the foundational aspects of utilitarian ethical theory. (Summary from Wikipedia)