About the example that ability comes from diligence.

When Marx wrote Das Kapital, he studied more than 1500 works and learned the languages of major European countries. In order to write more than 20 pages about British labor law in Das Kapital, he once studied the blue books in the whole library, which contained the reports of British and British investigation committees and factory inspectors. He has been drilling in the library for decades. In the British Museum in London, the cement under the seat where he often sits was actually wiped off by his leather shoes. Enkos is also a model of diligent study. He not only read books on philosophy, political economy, law, literature, history and military science, but also carefully read books on obstetrics and gynecology. 1849, Engels also learned a lot about sailing on his way from Genoa to England.

Lenin never missed an opportunity to learn in his life. Borrowing books from the library has become a habit in his life. Even when in exile and in prison, he tried to borrow books. "Study, study and study again" became Lenin's life principle.

"Ecstasy"

Gorky lived an extremely hard life since he was a child, but he loved reading. He is a book fan. He worked on the boat and was exhausted during the day, but he still studied under the lamp at night. He was so absorbed that he forgot everything around him.

Hua loved mathematics since childhood and achieved excellent results. As an adult, he worked hard. Although difficulties followed, he never bowed his head. On one occasion, he sat at the table thinking about calculation, and his little daughter accidentally fell at his feet, crying herself hoarse, and he didn't notice.

Shushan has a road service as its path.

Mathematician Chen Jingrun, in order to conquer Goldbach's conjecture, insisted on getting up at three o'clock every morning to learn a foreign language, going to the library every day and immersing himself in the ocean of mathematical symbols. Several times, he was locked in the library because he didn't hear the librarian's cry to close the library, but he didn't mind and tirelessly returned to the pile of books. Finally took off the "crown" of mathematics.

Don't keep yourself idle.

Dong likes calligraphy. In his later years, he always went out on crutches. Tired of walking, when he sat down to have a rest, he used his crutch as a pen and squatted on the ground to practice calligraphy. When watching movies and taking the bus, he takes out a tube of bamboo pen cap from his pocket, or simply draws on his knee with his middle finger and keeps practicing.