"Utilitarianism" by John Stuart Mill unfolds the principles of utilitarian ethics, positing happiness as the foundation of moral action. Mill refines Jeremy Bentham's doctrine that the greatest happiness of the greatest number should guide ethical decision-making. Through lucid prose, he addresses critiques, clarifying utilitarianism's stance on justice and individual rights. This concise yet profound treatise navigates the complexities of moral philosophy, advocating for a life oriented towards promoting general well-being and joy.