A middle-aged man was admitted to the hospital with no feeling on the left side of his body. A child was shouting loudly in the ward and was pinched by his father and screamed with pain. The patient said, I really envy this child! Someone asked: envy him carefree? The patient shook his head. envy his flower-like age? The patient said, No, I envy him for having such sensitive pain.If I can feel the pain, it means there is a chance of recovery. 
 The best title for this text is 'Life rejoices in pain.'