Abstract

Whenever psychologists, neuroscientists, or philosophers draw conclusions about moral judgments in general from a small selected sample, they assume that moral judgments are unified by some common and peculiar feature that enables generalizations and makes morality worthy of study as a unified field. We assess this assumption by considering the six main candidates for a unifying feature: content, phenomenology, force, form, function, and brain mechanisms. We conclude that moral judgment is not unified on any of these levels and that moral science should adopt a more fine-grained taxonomic approach that studies carefully defined groups of moral judgments.