 Foot was among the pioneers of writing on issues in applied ethics, treating abortion and euthanasia. For reasons only made explicit in later writings, Foot rejects consequentialist views of value, including utilitarianism. Charity, on her account, demands that we aid others, but we cannot do so at the expense of violating rights to non-interference, or negative rights. As Foot puts it, “in so far as a man’s charity is limited only by his justice… he is not less than perfect in charity” (1983 [MD 57]). But what does justice demand? For Foot, answering this question depends on figuring out the scope of our moral rights, and this is a project that she pursued by reflecting on various thought experiments, some of which have entered popular culture.