This essay explores the notion of intrinsic value. It is argued thata richly sentient life being a certain wayis the only possible subject of a defensible judgement of intrinsic value. One consequence of this thesis is a disagreement with G. E. Moore regarding the intrinsic value of a beautiful world devoid of sentience, a famous thought experiment from hisPrincipia Ethica. But a more important consequence is the underlining of an intimate connection between the notion of a richly sentient life and the very idea of intrinsic value.
Keywords: theory of value, G. E. Moore, richly sentient life