George Edward Moore OM, usually known as G. E. Moore, (1873-1958) was a distinguished and influential English philosopher. He was, with Bertrand Russell, Ludwig Wittgenstein, and (before them) Gottlob Frege, one of the founders of the analytic tradition in philosophy. His book "Ethics" is a worthy followup volume to "Principia Ethica." It takes up the issues of Utilitarianism, Free Will, and the objectivity of moral judgements.