Who has strong willpower? Urgent need!

1. The Soviet writer ostrovsky finished the novel How Steel was Tempered by teaching people. 2. Helen Keller, an American woman writer, was blind in her early years and learned Braille under the guidance of Sullivan. When she grew up, she became a social activist and actively gave speeches around the world to promote the disabled. And finished the novel "If you give me three days of light". 3. The Curies set up a laboratory in the shabby morgue, discovered radium through painstaking research, and won the Nobel Prize in physics twice. 4. Tong Dizhou, a famous modern biologist in China, was ordered to drop out of school because of his comprehensive average score of 45 in middle school, but he insisted on tutoring and was among the best through one year's efforts. Later, when I was studying in Belgium, I completed the frog anatomy experiment that ordinary people could not complete. 5. Zhang Haidi, a famous contemporary woman writer, was paraplegic at the age of five due to an accident, but she persisted in self-study from primary school to university and was proficient in many languages.