Male ... four or five-year-old dumb child. But at the age of 12, he proved the Pythagorean theorem through unremitting efforts and struggles. He was once considered the most "stupid" student by the teacher. Jing became a world celebrity overnight by her own struggle. He worked as a shop assistant, but discovered the theory of relativity and became another Jew who won the Nobel Prize in physics. His life is full of ups and downs and miracles. However, he brought joy and progress to the whole world with his own struggle. He is the most outstanding scientist in the 20th century-Einstein. As Andersen once said, one can only achieve something through hard work. If we are all waiting for rabbits instead of looking for success by ourselves. Success will never take the initiative to find you. Liang Qichao once said: "The youth is strong, the country is strong, the youth is wise, and the progress of the youth is the progress of the country." Yes, we have great young people now. For the happiness of our life, for the time that will never return, we should study hard. Only in this way can we have the capital to serve the country and make contributions to society when we grow up. How steel was tempered is a book that once swept all socialist countries. It has inspired generations of young people and still affects us in our prime today. Once confused, should my youth be dedicated to my career, or be as carefree as some young people? When I faced difficulties and setbacks, I hesitated, not knowing whether to give up or persist, but this book gave me a clear direction.