"Each religion...necessarily contradicts every other religion, and probably contradicts itself...Religions, like languages, are necessary rivals. What religion a man shall have is a historical accident, quite as much as what language he shall speak. "Supernaturalism," Little Essays, No. 23
"Civilization is perhaps approaching one of those long winters that overtake it from time to time. Romantic Christendom - picturesque, passionate, unhappy episode - may be coming to an end. Such a catastrophe would be no reason for despair." Character and Opinion in the United States. 1920