"Never Say Never" is a monologue in which Mr. Matthew sat under a dim lamp one night and composed music for the children. This sentence deeply touched me. Never say never. The child is so cute, so smart and eager to learn, so talented. How does teacher Matthew resist the heart of composing music and lyrics for children? Never say forever, although fate is bumpy, although many things are not smooth and left out in the cold, how can Mr. Matthew say that no one cares about himself? The paper plane flying out of the high wall, the sincere and simple message in the paper plane, and the small hand waving at the window are not the unspeakable love of the children for Mr. Matthew? Isn't it the deepest memory of Mr. Matthew for children? Never say forever, maybe in a corner, everything will be different.