Life is precious, it only comes once for people. But how can people live to be valuable? Is it mediocre and idle? Are you addicted to eating, drinking and having fun all day, like those dudes? Or do you just want to make your niche live better through calculation day and night? Neither! We say: the life that can strive for the happiness of mankind is the most valuable. "Living is to make others live better." This is a famous saying of Lei Feng. Yes! Whether to live for yourself or for others is the watershed of whether life is valuable or not. In the history of our country, there are many outstanding figures, such as Yu Xia, who left home for nine years and refused to enter the house for three times in order to control water. In order to relieve the pain of people's diseases, Li Shizhen is willing to eat wind and drink dew and wander around the mountains. It took him forty years to write this masterpiece Compendium of Materia Medica. They are immortal and have won the respect of future generations. Since modern times, countless revolutionaries have closely linked their personal lives with the magnificent cause of * * *, and devoted all their energy and even precious lives to the cause of human liberation, creating a better life for us today. It can be said that their health values have reached the limit of positive numbers. "Life has never died since ancient times, so it is a famous saying of Wen Tianxiang in the Song Dynasty. Indeed, in the face of the threat of death, it is another important yardstick to test the value of life, whether to be fearless in the face of danger and sacrifice one's life for righteousness, or to be servile and afraid of death and drag out an ignoble existence. Wen Tianxiang put this famous saying into practice with his own actions. He fought to the death and died without regret. He was finally arrested and imprisoned for three years. He resisted the temptation of Prime Minister Dayuan and died generously, which surprised even the enemy. This kind of life can really be said to be immortal! In the history of modern and contemporary proletarian revolution, there are many heroes who far surpass the ancients, such as Liu Hulan, Qiu, Dong Cunrui, Huang Jiguang, Lei Feng, Jiao, and so on. They died for the happiness of mankind. Although they have passed away, their spirit and deeds will always shine in the long river of history and inspire future generations. The value of life cannot be calculated by numbers. " The best thing about life is that after you stop living, you can still serve the people with everything he has created. "This is the famous saying of the Soviet hero ostrovsky. It is true that he can continue to serve the people with everything he created after his death, which is equal to the continuation of life and its value is immeasurable. In fact, if a person is striving for the happiness of mankind, then the value of his life should be expressed not only before his death, but also after his death. It was under the extremely difficult conditions of blindness and paralysis that ostrovsky wrote the book How Steel was Tempered with indomitable will. Until now, this book has inspired the progressive young people all over the world to flourish. What a great spiritual wealth he has contributed to mankind! In order to solve the water conservancy problems in the local plain, Li Bing and his son in ancient China overcame many difficulties and finally built the world-famous Dujiangyan. In order to improve printing efficiency, Bi Sheng finally invented movable type printing after many experiments and obstacles. After many years, both China and foreign countries have benefited from it. The material wealth they contributed to people also made future generations eulogize. It can be said that these people's lives have been "alive" until today, and even later generations. In contemporary times, there are many examples, so it is unnecessary to list them one by one. On the contrary, some people just want to enjoy themselves and spend their lives in a daze, decaying with the vegetation. There are few in this world, and there is nothing else. The life value of such a person can be said to be equal to zero. There are also some people who, in order to satisfy their own selfish desires, do not hesitate to harm the interests of others, build their personal "happiness" on the basis of the suffering of most people, and even betray their country for glory, have a blatant accident, or fish people and damage integrity. The existence of these people is only a human disaster, and their dead people applaud. How do you say the life value of this kind of person? It can only be said that the limit of negative numbers has been reached. Of course, different positions, different world views and different understandings of the value of life. The world outlook of ultra-egoists is "Every man for himself, and the devil takes the hindmost". Talking to them that "the value of life lies in striving for people's happiness" is tantamount to casting pearls before swine. We are the backbone of China's future. We should establish a positive outlook on life, take Lei Feng as an example, "devote our limited life to serving the people indefinitely", so that youth can glow with brilliant sparks and life can have real value.