 There is more one could say here on agreement and disagreement on what counts as theoretical within philosophy, including something about what might qualify as an anti-theoretical approach to morality and bioethics (Clarke 1987; Clarke &amp; Simpson 1989; Fotion 2014; Louden 1990). But our main point for the moment is that what counts as moral theory is not perfectly clear, which complicates the question of the relation between moral theory and bioethics. We need not here stipulate one definition of what we shall count as a theoretical approach to bioethical problems moving forward. Suffice it to say that the question of the relation between theory and bioethics will be approached by canvassing various methodological approaches to treating problems and questions in bioethics.