A proverb says, "knowledge is power,it can make you stranger and stranger". The knowledge is not like  stone or brick that is too heavy to carry.The more knowledge means the more abilities you own. If you know about various subjects ,you can solve a variety of problems. Therefore，in my opinion, students should take classes in many subjects to gain kinds of skills.    In my school,there are different types of classes provided to you,for instance,math,art,history,sports and so on.Each major has an positive impact on our body and mind.Math will enable us to think logically. Art and history can make us how to appreciate beauty and sports can give us a strong body to resist disease.  When I am studying in university,I major in electric engineering,but I choose a philology as a auxiliary subject which taught me speaking skill and how to grasp main point .In this way,I became a reporter and was recognized by teachers in my school. Whether studying in university or working after graduation,we need various knowledge to deal with all kinds of difficulties. A musician can make CD on his own if he knows how to operate computer.An astronomer can draw comet and the orbit of earth by himself if he is good at art.Therefore,students should take class in many subjects.   On the other hand,some people  more like to major in a special subject so that they can have a further comprehension in this field,and gain more attainments.For example,some writers took most their time to write one novel,at last they won the honor.However,in university,it is the best time for students to learn about knowledge and broaden their vision.They may have different occupations in kinds of areas, so that they could be likely accepted by social.Companies will save money if it hire a person who can play a big role in two or more positions.   To conclude,students should take class in many subjects to enable themselves to be popular and have a  wonderful lifetime.