Thomas Reid (1710-96) was one of the most daring and original thinkers of the eighteenth century. His work became the cornerstone of the Scottish School of Common Sense Philosophy, and was highly influential in nineteenth-century America; it also anticipated the thinking of such twentieth-century figures as Moore and Wittgenstein. Now, after a long period of neglect, his philosophy is again the subject of increasing attention across the world. For Reid, knowing about ethics is a matter of having 'good evidence' supplied by a sense-like moral faculty. William Davis's book shows how such a view.