Are we obligated to have children? If so how many? In the name of the greatest happiness principle (the greatest good for the greatest number) perhaps we should go forth and multiply so that the world can be a fuller, happier place.But philosopher Derek Parfit's infamous "Repugnant Conclusion" takes this mentality all the way down the slippery slope towards its horrifying results: that we are ethically obligated to produce as many babies as possible, even if those new humans will live in barely livable conditions. For most, such a future is unpalatable, even if ethical. But, in spite of its repugnance few reasonable alternatives have been reckoned in the realm of ethical theory. "A Resplendent Conclusion" proposes a theory of classical utilitarianism that attempts to resolve Parfit's problem, and other equally daunting ethical dilemmas, and provide a self-consistent theory and a hopeful path forward for population ethics. Philosophical and mathematical, but short and to the point, the book attempts to outline the utilitarian theory, justify its claims and assumptions, compare its tenets to other theories, demonstrate its practicability, and present its intuitive appeal. Hopefully, if we can solve some of these problems now, then the future will not look so repugnant.