Li Bai's childhood experience made him understand that he should cherish time and study hard.

Li Bai, a famous poet in Tang Dynasty, didn't like reading when he was a child. He often plays truant and wanders in the street.

One day, Li Bai did not go to school again. He wandered about the street, looked around and unconsciously arrived outside the city. Warm sunshine, cheerful bird songs and flowers swaying with the wind made Li Bai sigh, "How boring it is to study in the house all day in such good weather?"

Walking, at the door of a broken hut

An old woman with white hair is grinding an iron pestle as thick as a stick. Li Bai walked over. "What are you doing, old woman?"

"I want to grind this iron pestle into an embroidery needle." The old woman looked up, smiled at Li Bai, and then lowered her head to continue grinding.

"Embroidered needle?" Li Bai asked again, "Is it an embroidery needle for sewing clothes?"

"Of course!"

"But, the iron pestle is so thick, when can it be ground into a fine embroidery needle?"

The old woman asked Li Bai, "A drop of water can pierce a stone, but a fool can move a mountain. Why can't an iron pestle be ground into an embroidery needle?"

"But, you are so old?"

"As long as I work harder than others, there is nothing I can't do."

Li Bai was ashamed of what the old woman said, and never played truant after he went back. I study very hard every day and finally become an immortal poet.