Almost every thoughtful person wonders at some time why morality says what it says and how, if at all, it speaks to us. David Wiggins surveys the answers most commonly proposed for such questions--and does so in a way that the thinking reader, increasingly perplexed by the everyday problem of moral philosophy, can follow. His work is thus an introduction to ethics that presupposes nothing more than the reader's willingness to read philosophical proposals closely and literally.

Gathering insights from Hume, Kant, the utilitarians, and a twentieth-century assortment of post-utilitarian...