Study has been the indispensable part of our life. For some people, study means to learn knowledge from school, which for others, they believe that study is happening all the time, which is not limited in the regular learning. I believe that if we keep thinking, we are studying. Study brings us the valuable things. The most important thing is critical thinking. When we are babies, we get to know the world by imitating. But as we grow up, we will have our own opinion about the world. A complete person will not follow the crowd, who can figure out the truth and fake. Study also brings us a bigger world. The more we read, the farther distance we can reach. A person is easy to be stuck in the current difficulty, but if he can see the beauty of life, he will adjust himself and be positive to life.