A hole was drilled in the wall to get light from the neighbor's house.

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.

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

Snowbag firefly

During the Jin Dynasty, there was a man named Sun Kang who was very studious. His family is too poor to buy lamp oil and can't study at night, so he tries his best to study hard. On winter nights, he often studies outdoors by snow light regardless of the cold.

At that time, there was a man named Che Yin who, like Sun Kang, had no money to buy lamp oil. On summer nights, he caught many fireflies, put them in gauze bags, and studied them day and night with fluorescent lamps.

Socrates, a famous philosopher in ancient Greece, not only wrote brilliant works, but also recruited students to fall behind and enlightened the wisdom of young people with famous enlightenment dialogues. Whenever people admire his profound knowledge and extraordinary wisdom, he always modestly says, "The only thing I know is my own ignorance."

Newton, known as the "father of mechanics", discovered the law of universal gravitation, and in heat, he determined the law of cooling. In mathematics, he put forward the "flow number method", established binomial theorem and Leibniz founded calculus almost at the same time, which opened a new era of mathematics. He is a great scientist who has made many achievements, yet he is very modest. Regarding his success, he said modestly, "If I see farther than Descartes, it is because I stand on the shoulders of giants." He also said to people, "I am like a child playing on the beach." Sometimes I am glad to find a smooth and beautiful stone, but the sea of truth has not been discovered. "

Beethoven, a world-famous music master, said modestly that he "learned only a few notes".

The great scientist Einstein said that he was "as naive as a child".

Andre, a French chemist, made great achievements in chemistry when he was a Muji. He was elected as a member of the Royal Society, Owens College set up a new professor position in organic chemistry for him, and Glass University elected him as an honorary doctor. These honors didn't change his modesty at all. After the death of George W. Laima, Engels called him "the most modest man in the world" in his eulogy.