"But you're wrong, sir!" said the boy with a smile; "I may not be elated over my fatal disease, but neither am I despondent. I force myself to keep going when I wonder how the miserable machine responds to my urging, and I shall keep it going, after a fashion, until the final breakdown. Fate weaves the thread of our lives, I truly believe, and she didn't use very good material when she started mine. But that doesn't matter," he added quickly. "I'm trying to do a little good as I go along and not waste my opportunities. I'm obeying my doctor's orders and facing the future with all the philosophy I can summon. So now, if you--who have given me a new lease of life--think I can use it to any better advantage, I am willing to follow your counsel."