This essay examines the concept of the Anglican via media and its historical development into its present form. It argues that the Anglican via media is properly understood not as a fixed program of reform, but as moderation in reform, following the classical notion of moderation as a mean between two extremes. The essay traces the theological theme of moderation in reform through the figures of Jewel, Parker, Hooker, Hall, Montagu, Cosin, Forbes, Bramhall, Puller, Knox, to Jebb’s idea of Anglican exceptionalism, and, ultimately, to Newman’s attempt to create the doctrine of the Anglican via media.