“书山有路勤为径,学海无涯苦作舟.”这是古人遗训,它告诉我们勤学苦读是求学之道.但是从效果上看,苦读和巧学应该结合.就说读书吧,要读得好,少走弯道,就必须有向导,这向导就是一本书的重要组成部分——序和跋.读书先读序和跋,就像在书山里跋涉有了向导. “The Book Hill has its own way of working hard and learning from the sea.” This is a legacy of the ancients, telling us that hard study is a way of studying, but from the point of view of effect, studying hard and learning should be combined. Reading, to read well, less take the corner, there must be a guide, this guide is an important part of a book - preface and postscript. Preface to read books and Postscript, like in the book mountain trek with a guide .