He respects people with knowledge and respect people who read a book because they can study tells us that we have the knowledge and respect of the people who know.
He respects people who have the knowledge and respect for the people who read books. Because the study can say that we have the knowledge and the respect of those who know.
He respected people with knowledge and respect people who read books. Because the study can be said that we have the knowledge and is respectful of one who knows.