Saint Augustine, U. G. Krishnamurti, Leo Tolstoy, C. H. Spurgeon, William Blake, Kahlil Gibran, John of the Cross, Ignatius of Loyola, Ralph Waldo Emerson, Thomas Browne, Basil The Great, Gregory of Nyssa, St. Teresa of Avila, Thomas à Kempis, Thomas More, Blaise Pascal, George Müller, Ludwig Feuerbach, Jonathan Edwards, Evelyn Underhill, Charles Spurgeon, G. K. Chesterton, Fyodor Dostoyevsky, George MacDonald, Miguel De Unamuno, Reynold A. Nicholson, Frances Ridley Havergal, H. Emilie Cady, Anne Catherine Emmerich, Henry Scougal, Florence Scovel Shinn, Andrew Murray, Henry Drummond, Epictetus, Mahatma Gandhi, William James, Emanuel Swedenborg, William Walker Atkinson, Joseph Benner, Charles Fillmore, Edwin Sir Arnold, Ignatius of Antioch, John Donne, John Wesley & Helena Blavatsky
