"At one time, the race depended upon quantity for survival," Toby said. "Now it is destroying itself. We believe that man's unique characteristics, imagination, psychic understanding, sympathy, and so forth, are being undermined. Even if the race survives physically, it won't be the same race. We won't be bright enough to recognize our fall from grace, either; that's the hell of it. Tests show that though our mental capacity is as great as ever, our use of it has slumped to an astonishing degree."

p. 66 - The Rebellers, (1963)