Everyone need to choose a certain field to learn more and deeper knowledge.Some students may not have the ability to choose the field suitable for them,so the claim said educational institutions have a responsibility to dissuade students from pursuing fields of study in which they are unlikely to succeed.  The first thing is,what is success?We can make a definition for it:if a man is engaged in a  field that he is interested in,his job can make value for society and he enjoys his job,we can call the man is success in that field.So in this definition,everyone can have his own success,but unfortunately,in modern society,success is a concept endowed by the public and society.People always judge whether others is successful by this concept,and someone try their best to pursue this concept,but at last they find it can only give them void.They are successful in public's concept,but they do not enjoy their jobs,they may think it is painful to do it,and think they have no freedom.Naturally we can not think that the man is successful. So I think in the most cases,educational institutions should not dissuade students from pursuing fields of study in which they are unlikely to succeed.Because educational institutions just judge whether is successful by public's idea.But students may have different ideas about success.Educational institutions may think a student will not  succeed in a field,but the student may enjoy this process.Even if educational institutions have the same idea with students about success,do the educational institutions have the ability to judge whether the students have the ability to succeed?Success need a lot:knowledge,analytic ability,creativity,professional skill and enthusiam.In most cases,students know themselves better but not the educational institutions.Educational institutions should provide students with more information,excavate them potential and guide them to find the field that they think they will succeed,but not choose field for students.Educational institutions do not have the ability to predict a field's prospective condition.  Someone may say that if  students will surely not succeed in one field, educational institutions should still  dissuade them?Although there are some examples tell us their opinion is right in some cases.For example,in China,if a child do not play table tennis before seven,he will hardly have the possibility to success in professional table tennis.But in intelligence field,peole's golden time is much  longer,they have enough time to choose the field and excavate their potential.  Above all,I think the in most cases educational institutions should not dissuade students from pursuing fields of study in which they are unlikely to succeed,except the students have passed the field's golden time to pursue the field.