Why does need to learn education in the Liberal Arts ?A liberal arts education has at its center four practices that distinguish it from other kinds of learning: critical thinking, examination of life, encounters with difference, and free exchange of ideas. By offering an education in the liberal arts, some liberal studies subject teachers believe that the importance of lifelong learning characterized by sustained intellectual curiosity and an open mind for assessing the unfamiliar. At the same time, by using critical thinking to identify assumptions, to test logic, to evaluate evidence, to reason correctly, and to take responsibility for the conclusions and actions that result, a student of the liberal arts can grow personally as well as intellectually. A liberally educated person should be capable of principled judgment, seeking to understand the origins, context, and implications of any area of study, rather than looking exclusively at its application. A liberally educated person should also be skilled at solving problems, drawing together multiple perspectives in the creation of new knowledge.Because knowledge is lost if it is not shared, both students and teachers of the liberal arts strive to engage in precise and graceful communication. This communication takes place verbally, but also in other ways, including the symbolic and expressive systems of mathematics, music, computer languages, the natural sciences, and the visual and performing arts. By learning and exploring these systems, one may attain an understanding of aspects of human expression, which is a crucial part of liberal education. Otherwise, some liberal studies subject teachers argue that the central task of liberal education is to activate each student's mind, so that choices and actions may emerge from independent thought rather than from acceptance of conventional assumptions or dictates. Hence, liberal studies subject brings some educational system changing to some countries, such as Hong Kong educational system, it becomes one essential one essential subject in high school, any high school students must pass this subject if they expect to enrol to any Hong Kong universities successfully. It will bring negative psychological pressure to Hong Kong students in fact. This flexibility places significant responsibility on each student to design a coherent and compelling course of study, in conversation with a faculty adviser. Each student declares an academic major at some point during the first four semesters of enrollment. In consultation with an adviser, the student plans a comprehensive program that can incorporate options such as mentored research, off-campus study, teaching certification, an internship, or an interdisciplinary concentration. The academic major gives a distinctive shape to the four years of undergraduate education.