Folks do not notice the Devil

Goethe expressed a deep truth when he said: “Folks do not notice the Devil, even when he takes them by the scruff of the neck!” IN fact, it is possible to ignore the devil; it is possible not to see him. From the standpoint of modern natural science it is easy to say that Mephistopheles does not exist. 

Source: Rudolf Steiner – Morality and Karma – Nuremberg, November 12th, 1910 (No assigned GA)