The three creative prototypes, the scientist, the artist, and the saint, know instinctively, without the help of any mere philosopher, that each must obey an absolute rule of conduct. Three words established and hallowed by usage express the divinities, the values, the supreme aims served respectively by these three kinds of men with an undivided loyalty: truth for the scientist; beauty for the artist; goodness for the saint. The discussion on what these words mean will never end. We must be content with taking note of their clarity as symbols, and of the singular force which animates them and makes of them powerful poles of attraction.