As the saying goes, "Nothing is difficult in the world" Han Yu, a writer in the Tang Dynasty, said, "Industry is good at diligence." Profound knowledge comes from diligence. Diligence means cherishing time, studying, thinking, exploring and practicing. People who have made achievements in ancient and modern times are diligent and successful. The result of diligence. Marx wrote Das Kapital, studied hard for 40 years and read an amazing number of books, including 1500 kinds of notes. Sima Qian wrote Historical Records, and since he was 20 years old, he traveled all over the Yellow River and the Yangtze River, collecting a large number of social historical materials, which laid the foundation for the creation of Historical Records. Goethe spent 58 years, collected a lot of information, and wrote Faust, a poetic drama that has great influence in the world literary and ideological circles. On the way to the peak of mathematics, Chen Jingrun, a contemporary mathematician in China, read thousands of related materials at home and abroad, studied all night and made achievements that shocked the world. A young woman in Shanghai insisted on self-study, and after ten years, she was finally admitted to the graduate school of high-energy physics. It can be seen that any achievement can not be separated from diligence. There is no exception in ancient and modern China and foreign countries. Diligence makes wisdom. Legend has it that there was an orator named Demosthenes in ancient Greece. Because he stuttered when he was a child, his voice was vague and his pronunciation was inaccurate, and he was often overwhelmed by eloquent opponents. However, he was not discouraged and discouraged. In order to overcome this weakness and defeat his eloquent opponent, he recited to the sea with a stone in his mouth every day, and practiced speaking for 50 years, even climbing mountains and running, and eventually became one of the most famous speakers in Greece. Zhu, a scholar in the Song Dynasty, told a story: There was a man named Chen in Fuzhou who was very slow to respond. He can only read 50 words at a time, and he has to read a short article once or twice to get familiar with it. But he is neither lazy nor lazy. He studies hard and practices hard. Others read it once, and he studied it three times and four times. As time goes on, his knowledge increases day by day. Later, he read a lot of books and became a learned man. This shows that even if the talent is poor and the reaction is slow, you can make a fool of yourself as long as you are diligent. Practice has proved that the key to a person's knowledge lies in how diligent he is. Lazy people will never achieve anything in their careers and will never make themselves smart. Only diligent people can hunt for real wisdom and talents in the infinite ocean of knowledge, open up the field of knowledge and make themselves smart. Gorky said: "Genius comes from diligence." As long as you are diligent, you will certainly win great achievements in your career through hard work. I think everyone who is eager to learn must be able to appreciate the profound meaning of "diligence".