Generally speaking, books don't cause much harm. Except when you read them, that is. Then they cause all kinds of problems. Books can, for example, give you ideas. I don't know if you've ever had an idea before, but, if you have, you know how much trouble an idea can get you into.
Pseudonymous BoschOh, talking is not so bad as that," said the Jester. "True, most people say only silly things when they speak. But it's easier to ignore them if you're saying silly things yourself.
Pseudonymous Bosch