I assume other people 'click' with the same authors I do.  Some I understand and others I don't.  Or better, some make sense and others don't make sense. 
   Is it my fault.  No.  I don't think so.
    A couple of times I've picked up used books written by Harvard professors.  One I remember was a physics book.  I was shocked at the comprehension of subjects it yielded that had seemed so difficult in the past.  Physics subjects like light wave refraction, gravity, that sort of thing.  The Harvard text book spoke plainly, simply, and to the point.  Not only that, it led to other, more detailed references whereby the student could pursue subjects in more depth.
    The course that accompanied the text probably gave a 'c' grade to students who mastered the material in this particular Harvard text book.  I'll betcha 'A' and 'B' grades were given to students who pursued some of the references.  It was really quite a brilliant way to teach students.  Measuring a students above average achievements were categorized by the basic text and over time became easier for the professor to manage.  Only the best and the brightest could come up with such an educational platform and where else but Harvard would expect anything less.  The methods were probably developed over decades if not centuries through Harvard curricula.  
   If you think about it, Harvard was a school for the wealthy.  It wouldn't do to have rich people pay and send their children home sans knowledge.  Harvard professors had to produce and even the dumbest of students could learn with the simpler text while other could be motivated to develop further pursuing the references.
   Not that the used physic's book I bought was incomplete on the subject material.  A Harvard grad who mastered the text had a firm understand of the fundamentals and could pursue further information as needed if it came up related to other subjects.   The teaching method was complete.
    I've seen other books, written by Harvard professors as well.  I can remember a communication book, a software book, both subjects I had had difficulty with in my state run college experiences, that became clear once I read the Harvard books.  So why isn't this level of study applied to state run colleges and universities?  Why do so many Harvard grads get the good paying jobs?  Why is 'Harvard' on a resume an almost sure way to get the job?  The rich get richer, don't they?