The book to read is not the one which thinks for you, but the one which makes you think. No book in the world equals the Bible for that.
How much are we willing to lose from our already short lives by losing ourselves in our Blackberries, our iPhones, by not paying attention to the human being across from us who is talking with us, by being so lazy that we're not willing to process deeply?
In any case, the fewer boundaries that exist hindering free movement between all forms of articulate human cognition, the better.