the mood organ

"But a mood like that," Rick said, "you're apt to stay in it, not dial your way out. Despair like that, about total reality, is self-perpetuating."

"I program an automatic resetting for three hours later," his wife said sleekly. "A 481. Awareness of the manifold pos­sibilities open to me in the future; new hope that — "

"I know 481," he interrupted. He had dialed out the combination many times; he relied on it greatly. "Listen," he said, seating himself on his bed and taking hold of her hands to draw her down beside him, "even with an automatic cut­off it's dangerous to undergo a depression, any kind.