What do you believe in?

Hi guys. We all know that I am so much into knowing your choices about stuff. So today my question for you. What? What? What do you believe in most the knowledge gained from books or with the knowledge you gain by living by your surroundings. So if you have an answer for it, please do reply to this Bell and also tell me, why do you believe so? There must be a particular reason and how beneficial was it for you? And I think somewhere like general knowledge

KNOWLEDGE FROM BOOKS OR KNOWLEDGE FROM SURROUNDINGS