We compare college general education and adult education, based on the author's first herded experience. It is pointed out that the common main task of the two fields is to develop indecent thinking of student s. the definition and mechanism of independent thinking, as well as critical thinking and subjective experience are analyzed. Also, we consider the limitation of abstract thinking (including logic thinking) and assent that the nowadays school education requires only abstract thinking (but not citied thinking). Yet abstract thinking is only a part of independent thinking. Finally, the paper emphasizes the role of subjective experience in developing independent thinking.