Many people always complain the studying is so difficult to persist, however, they never realize their attitude of studying is wrong.
First, if we learn a new thing, we should understand it at all. We can't ignore some unclear things, because these uncertainties will emerge in a day. For these things, some people says:" I don't know, nor do I care." This is a terrible attitude will let things which you don't become more and more. As a result, you will find that you can't deal with them. The god is always unbiased, how much you pay, how much you gain.
Keeping a good attitude isn't a uncanny thing. You only need to try your best to beat every difficulties. Then you will exceed others when you are unaware.