A Short History of Freethought Ancient and Modern, Volume 2 of 2 by J. M. Robertson

17. Communication of doubt and moral questioning through poetry and

belles-lettres--as in Shelley, Byron, Coleridge, Clough, Tennyson, Carlyle, Arnold, Browning, Swinburne, Goethe, Schiller, Heine, Victor Hugo, Leconte de Lisle, Leopardi, and certain French and English novelists. II.--Modern Science, physical, mental, and moral, sapping the bases of all supernaturalist systems.