Bradbury learned long ago that amidst the joy, there is also evil in the world and in the hearts of men. In a letter, he once wrote that each one of us has "a private keep somewhere in the upper part of the head where, from time to time, of midnights, the beast can be heard raving. To control that, to the end of life, to stay contemplative, sane, good-humored, is our entire work, in the midst of cities that tempt us to inhumanity, and passions that threaten to drive through the skin with invisible spikes."
-James E. Person Jr., "Ray Bradbury at 90", NRO