Abstract
Atomism is defined as the view that the moral value of any object is ultimately determined by simple features whose contribution to the value of an object is always the same, independently of context. A morally fundamental feature, in a given context, is defined as one whose contribution in that context is determined by no other value fact. Three theses are defended, which together entail atomism: (1) All objects have their moral value ultimately in virtue of morally fundamental features; (2) If a feature is morally fundamental, then its contribution is always the same; (3) Morally fundamental features are simple