"Of course I know you," he muttered. "I know that you’re very careful...You were the biggest mistake I ever made. Or the biggest mistake that I never made. The regret’s much the same, either way." He looked up, cajoling her. "Plato never asks for much. He’d be grateful for whatever you gave him. He needs someone. I don’t know what he’ll do, once I’m dead. I don’t know how he’ll take it. He’s so smart, and it costs him so much pain to think."