suggestion

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 in 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 shabby hut, sat a white-haired old woman grinding an iron pestle as thick as a stick. Li Bai went over and said, "Old woman, what are you doing?"

"I'm going to grind this iron pestle into an embroidery needle." The old woman looked up and smiled at Li Bai, 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, nothing is impossible."

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