someone who takes into consideration what is written in a book about a man, or his teachings, is less likely to be, in my mind, of independant thought.
And someone who doesn’t read books (regardless of the subject) is, in my humble opinion, far more likely to be ignorant on a huge variety of topics. Sorry, poor argument that one I’m afraid. I’d say it’s always a good idea to read books or articles putting forward a viewpoint different from your own.