A curriculum schedule arranged reasonably is as good as a nutrition-balanced recipe in which every item is beneficial, indispensable and best chosen and cannot be neglected. The so-called selective subjects are only some limited options within a certain range. A well-educated person is much like an opera performer by professional training who has to observe strict disciplines in studying the art of singing, acting and acrobatic skills earnestly and learn to play all kinds of roles well. Only after this all-round training, can he develop the things he is specially good at and interested in. Studying needs foundation which, if solid and evenly, will benefit you all life long.