For most people, books are an important way for them to acquire knowledge and seek pillars of thought. It is not the people who write books that can become the guides of the social age. Among the people who write books and the sea of complicated books, Often, those who can really make a deep impression in people's minds are often negligible. Therefore, for those book writers who don't take profit as their main purpose and those who are devoted to their minds, Efforts and eternal exploration are of equal value. The main points supported by this passage are:. ['Too many works often make people good and bad.', 'For the evaluation of works, both the author and the reader should have a common standard.', 'The quality of the work is not much but fine.', 'Only works with a lot of hard work are best.']