" This Stephen Byerley was. But there was an accident. Byerley’s wife died; he himself, worse. His legs were gone; his face was gone; his voice was gone. Part of his mind was—bent. He would not submit to plastic surgery. He retired from the world, legal career gone—only his intelligence, and his hands left. Somehow he could obtain positronic brains, even a complex one, one which had the greatest capacity of forming judgments in ethical problems—which is the highest robotic function so far developed.