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Did you watch the cartoon movie Chang An (《长安三万里》)? It is about a famous Chinese poet (诗人), Li Bai. He was very clever. He could write many poems when he was little. You may think he worked hard at school then. But he didn't. A story tells that Li Bai got bored at school one day. He left the school and took a walk. He saw an old woman near a river. She was grinding (打磨) a big iron rod (铁棒) on a stone.
"What are you doing?" Li Bai asked.
"I'm making a needle (针)," the old woman said.
"It'll take many years!" Li Bai said.
"Yes, but I can do it. One step (步) at a time," said the old woman.
"One step at a time... Oh, yes! I understand (理解) now," Li Bai said. Day by day, step by step, he got better in his studies.