The Three Subfields of Moral Philosophy and the Significance of Metaethics

Moral philosophy comprises normative ethics, applied ethics, and metaethics. Metaethics explores the nature of ethical theories and delves deep into the question of what makes moral truths true. It questions whether morality is subjective or an objective fact that can be discovered through reason, akin to mathematical truths. This inquiry has been of great importance to philosophers like Derek Parfit, who dedicated a significant part of his life to exploring this issue.