Knowledge is the most important position in life, because a person needs knowledge to lay the foundation for his career. When the amount of knowledge reaches a certain level, our ability to do things or understand can rise to a new height, and we can accept more new knowledge. Therefore, knowledge is very important in life, but knowledge must be practiced. Through practice, we can have a more comprehensive understanding of knowledge and master more knowledge. A person's life is to constantly master new knowledge and practice hard, so as to achieve his life. This is the important position and function of knowledge in life, and it is the most important.