Calmness comes from within. It is the peace and restfulness of the depths of our nature. The fury of storm and of wind agitate only the surface of the sea; they penetrate only two or three hundred feet; below that is the calm, unruffled deep. To be ready for the great crises of life we must learn serenity in our daily living. Calmness is the crown of self-control.
Source: The Majesty of Calmness, p. 8-9