1 year, Wu Jichang, a farmer scientist in China, was entrusted by Premier Zhou to engage in cotton experiments. He "wants to eat cotton and sleep cotton". 10 years, when people were not allowed to do experiments, he secretly did it in his own home. Finally, a new variety of cotton was cultivated, which contributed to the agricultural development of the motherland.

Edison spent ten years developing storage battery, but he insisted on failure. After about 50 thousand experiments, he finally succeeded in inventing the battery and was awarded the reputation of "the king of invention"

Marx, the mentor of the world proletarian revolutionary movement, spent more than 40 years reading Das Kapital and read a lot of materials in the British Museum, but a layer of cement was worn off on the concrete floor under the seat. Through unremitting efforts, Marx finally wrote Das Kapital, which the proletarians all over the world needed.

4. Van Gogh's persistent painting dream. Although it is a pity that his works were not appreciated before his death, it is really human to stick to his dreams and draw the pictures he wants in an indifferent and poor environment.

5. Once in class, Socrates gave his disciples an assignment to do one thing and shake hands a hundred times a day. After a week, he asked how many people still insisted on doing it, and 90% people insisted on doing it. A month later, he asked again, now there is only half left. A year later, he asked again, there is only one person who persists now, and that person is Plato.

Extended content: perseverance, slack: slack. Stick to the end, never slack off, describe perseverance, and compare perseverance with perseverance. From "The Biography of Liu Chongchuan in Qing Dynasty": "Xu encouraged the Corps to persevere, and the thief was poor and begged for surrender, so he returned." Tragedy: "By noon, these five persistent people had gone 14 km."