Li Bai, the great poet of the Tang Dynasty, read classics and history books when he was a child. Those books were very profound. He couldn't read them for a while and found them boring, so he dropped the books and skipped school to play.

While wandering around, he looked around. He saw an old woman sitting on a low stool on the whetstone, holding a very thick iron rod in her hand, sharpening it on the whetstone, her expression so focused that she didn't even notice when Li Bai squatted down in front of her. aware. Li Bai didn't know what the old lady was doing, so he asked curiously: "Grandma, what are you doing?" "Grinding needles." The old lady simply answered Li Bai without raising her head, still grinding the iron rod in her hand seriously. . "Grinding a needle?" Li Bai felt confused. What the old lady was grinding was obviously a thick iron rod. How could it be a needle? Li Bai couldn't help but ask again: "Grandma, the needle is very, very small, and what you are grinding is a thick iron rod!" The old woman said while grinding: "I just want to grind this iron rod into a small one." "What?" Li Bai was a little surprised, and he blurted out, "Can such a thick iron rod be ground into a needle?" At this time, the old woman looked up and looked at Xiao Li Bai kindly and said: "Yes, the iron rod is thick and big, and it is very difficult to grind it into a needle. But I keep grinding and grinding it every day, and one day, I will grind it into a needle. My child, as long as I work hard If you go deep, an iron rod can be ground into a needle!" The young Li Bai was a very enlightened child. After listening to the old lady's words, he suddenly understood a lot and thought: "That's right! As long as you have perseverance in doing things, you must persist every day. If you do it, you can accomplish anything. The same is true with reading. Although you don't understand something, as long as you keep reading more and read every day, you will always understand it. " Thinking of this, Li Bai felt deeply ashamed and his face became hot. . So he ran home, returned to his study, opened the book he couldn't read, and continued reading.