Saint Augustine / Pope Gregory I / Martin Luther / Friedrich Nietzsche / Thomas Paine / Leo Tolstoy / Athanasius of Alexandria / Gregory of Nyssa / John of Damascus / Thomas à Kempis / St. Teresa of Ávila / Brother Lawrence / David Hume / Ludwig Feuerbach / Charles Spurgeon / Andrew Murray / G. K. Chesterton / Arthur Pink / Dante Alighieri / John Milton / John Bunyan / Voltaire / Lew Wallace / Henryk Sienkiewicz / Charles M. Sheldon / Henry Van Dyke / Grace Livingston Hill / Fyodor Dostoevsky / Johann Wolfgang von Goethe / Ralph Waldo Emerson / H. Emilie Cady / James Allen / Prentice Mulford / Florence Scovel Shinn | 