American higher education stands on the brink of chaos. Never have so many spent so long learning so little. The present crisis stems from the increasing widespread acceptance among 62．______ faculty and administrators of the fatal educational principle which a student should not be required to do any academic work 63．______ that displeases him. If a student prefers not to study science or history or literature, he has allowed to attain his degree without studying any 64．______ science, history, or literature. In America the attempt is being made to provide students with what is advised as a liberal education without requiring by them 65．______ the necessary self-discipline and hard work. Students have been led to believe they can achieve without effort, that all they need to do is skip light-heartedly down the merry road to learning. Fortunately, that road 66．______ is no more than a detour (弯路) to the dead end of ignorance. we must realize that becoming an educated person is a difficult, demanded enterprise. Just as anyone who regards intense 67．______ physical training as a source of delight would be thought a fool, for we all know how much pain such training involves, but anyone who 68．______ speaks intense mental exertion as a source of joy ought to be thought 69．______ equally foolish, for such effort also involves pain. It is painful to have one’s ignorance exposing and frustrating to be baffled by intellectual 70．______ subtleties. Of course, there can be joy in learning as there can be in sport. But in both cases a joy is the result of overcoming challenges and can’t 71．______ be experienced without toil.