Today, there are still many people who regret that time flies, so they lament that "time flies, life should eat in time, eat in time, eat in time", and "how can the water of the Yellow River move out of heaven and into the ocean, never to return ..." Indeed, the speed of time is really difficult to estimate and describe. So, how can a person live a more meaningful life and make due contributions in his lifetime? This is to cherish your short time. The ancients had a poem: "When people are studying, they don't know whether they are diligent or not, and they regret it later." Poems such as "Young people don't work hard, old people are sad" are warning people that life is limited, so we must cherish time like gold, never lose precious light and shade, but study more and do more business when we are young and promising. A person cherishes time, that is, cherishes his own life. From ancient times to the present, there is no one who has achieved great success without cherishing time. The great inventor Edison finished an invention in an average of three days. He is studying carefully every minute. He did 1000 experiments for many times, just to find out what material to use as the filament. Mr. Lu Xun, a great writer, has a proverb, "Where is the genius? I am there when others are drinking coffee at work. " He left us more than six million words of spiritual wealth, precisely because he spent all other people's time drinking coffee on writing. Mathematician Chen Jingrun, day and night, devoted himself to studying a mathematical problem-Goldbach guessed that there were several sacks in the draft of calculus alone, but he finally proved this problem and took off the jewel in the crown of mathematics. Marx, the revolutionary mentor of the world proletariat, wrote Das Kapital before his death. These examples vividly show that if a person wants to make some contributions in his lifetime, he must cherish time. Shakespeare's famous saying: "Those who give up time, time will also give up him" "Time will break through the splendor and exquisiteness of young people, and it will carve parallel lines on the forehead of beauty; It will eat rare treasures and be born beautiful, and nothing can escape the sickle it sweeps. " This also strongly shows that if you want to succeed, you must cherish time. Leonardo da vinci, an outstanding Italian painter, said: "If you work hard for a day, you can have a good sleep;" If you work hard all your life, you will be happy and bright. Lev tolstoy's motto is "If you don't use your time effectively, you will never be able to return the little time you let go". The world also heard Darwin: "How can you do so many things in your life?" He replied, "I never think that half an hour is a trivial short time. "How can such famous sayings, epigrams and visual statements not profoundly tell people that many people who have made achievements and achievements have made achievements because they cherish time and spent their youth in a wonderful way? Edison only attended primary school for three months in his life, and his knowledge came from his mother's teaching and self-study. His success should be attributed to his mother's understanding and patient teaching since childhood, which made Edison, who was originally considered an imbecile, become a world-famous "king of invention" when he grew up. Edison was curious about many things since he was a child, and he liked to try it himself until he understood the truth. When he grew up, he devoted himself to research and invention according to his interest in this field. He established a laboratory in New Jersey, and invented the electric light, telegraph, phonograph, film machine, magnetic mineral analyzer, crusher and so on for more than 2000 kinds of things in his life. Edison's strong research spirit made him make great contributions to the improvement of human lifestyle.