The "body" of "experience" is to put yourself in the shoes and experience it personally; "Examination" is to examine feelings, verify and check. Experience is a process, personal experience and unteachability, and it is a process full of personality and creativity. From the psychological point of view, experience is a kind of "rational intuition" and a special activity based on individual's "inner perception", which is always closely linked with individual's self-consciousness. Therefore, from the etymological point of view, in the process of growing up, a person also needs personal experience and personal verification in order to acquire scientific knowledge, develop moral quality and master skills.