After his short career as an academic, he worked as a journalist on The Independent, the New York Evening Post and The Nation. He started on his Shelburne Essays in 1904; they were to run to 11 published volumes, drawing on his periodical writing, and were followed later by the New Shelburne Essays, in three volumes from 1928.
He wrote several books after his retirement from journalism, including, Platonism (1917); The Religion of Plato (1921); Hellenistic Philosophies (1923); and his biography and last published work, Pages from an Oxford Diary (1937). His Greek Tradition, 5 vols. (1924-31), is generally thought to be his best work.
During the last 10 years of his life, More wrote several books of Christian apologetics, including The Christ of the New Testament, The Catholic Faith and Christ the Word.