A middle-aged person was admitted to the hospital, and left half of his body was unconscious. A child was making a loud noise in the ward, and was twisted by his father, screaming in pain. The patient said, "I really envy this child!" "Envy him carefree?" The patient shook his head. "Envy his flowery age?" The patient said, "No, I envy him for such sensitive pain. If I can feel the pain, it means recovery is hopeful. ". What's best for this text title? ['Life refuses to be numb.', 'Life is fortunate.', 'Pain in life.', 'Different kinds of "pain".']