Reason: vividly comparing books to nutrition can reflect my heart and desire for reading.

Read the story:

In the Western Han Dynasty, there was a farmer's child named Kuang Heng. He wanted to study very much when he was a child, but because his family was poor, he couldn't afford to go to school. Later, he learned to read from a relative before he could read.

Kuang Heng can't afford books, so he has to borrow books to read. At that time, books were so valuable that people who had books refused to lend them to others easily. During the busy farming season, Kuang Heng worked as a short-term worker for wealthy families and asked them to lend him books for free.

A few years later, Kuang Heng grew up and became the main labor force in the family. He works in the field all day, and only has time to read a little book during his lunch break, so it often takes ten days and a half months to finish reading a book. Kuang Heng was in a hurry, thinking: planting crops during the day, no time to read, you can spend more time reading at night. But Kuang Heng's family is too poor to buy oil for lighting. What should we do?

One night, Kuang Heng was lying in bed reciting the books he had read during the day. Behind me, I suddenly saw a light coming through the east wall. He stood up and went to the wall to have a look. Ah! It turned out that the neighbor's light came through the cracks in the wall. So Kuang Heng thought of a way: he picked up a knife and dug several cracks in the wall. In this way, the light coming through is also very big, so he gathered the light coming through and began to read. This is the story of stealing light from the wall.

Kuang Heng studied so hard that he became a learned man.