Beware the common habit of putting confidence in books, as such. It takes a determined effort of mind to break the free from the error of of making books and teachers the ends in themselves. The worst thing a book can do for a Christian is to leave him with the impression that he has received from it anything really good; the best it can do is to point the way to the good he is seeking. The function of a good book is to stand like a signpost directing the reader to the Truth and the Life. That book serves best after it is forgotten, after the traveler has arrived safely at his desired haven. The work of a good book is to incite the reader to moral action, to turn his eyes towards God and to urge him forward. Beyond that it cannot go.
AW Tozer, The Divine Conquest, p14-15Too harsh, or right on the money?