Life is often so unpredictable. When you try hard to do something, you have traveled many roads, met many people, and persevered many times. But when you look back suddenly, you realize that you have just returned from the end to the starting point. Life does not matter the starting point and the end; and life does not matter whether it is successful or unsuccessful. Good friends are no longer there or separated by the world. But we have no regrets, because we have worked hard, and only through our own attempts can we appreciate the taste of life. Although when we no longer have any hope, fate often makes a joke to us and pushes us to the end of success. For example, you study English very diligently, but fail several exams. Finally, when you have no illusions, you just pass by doodling. I really don't know whether to cry or laugh. Therefore, we can only lament our fate. Is it opportunity or attitude towards life that has changed us? Or have we changed our lives?