On the one hand, some mankind believe that all of the colligians should learn any field they have tendency, on the other hand some people think they should only consider the job opportunities in the future. In other words, the first group think, liking a major is the most effective factor in selecting major, although another group against this thesis; they believe the most noteworthy thing should be take in to the account is the subjects be useful in the future. I feel without savour, nobody can get pleasant result in his major according to the reasons I will mention in the following.