Early works to 1800 69 History 61 Theology 48 Apologetics 37 Christianity 35 Ethics 30 Logic 26 more ... Christian saints 23 Controversial literature 23 Soul 23 Church history 20 Philosophy 20 Sermons, Greek 20 Early church 18 Theology, Doctrinal 18 Metaphysics 17 Doctrines 16 Orthodox Eastern Church 16 Philosophy, Ancient 16 Spiritual life 16 Christian heresies 14 Christian life 14 Criticism and interpretation 14 Knowledge, Theory of 14 Trinity 13 Monastic and religious life 12 Neoplatonism 12 Arianism 11 Mysticism 11 Political science 11 less ...