"Read not to contradict, nor to believe, but to weigh and consider. Some books are to be tasted, others to be swallowed, and some few to be chewed and digested."
I think this is the most important idea from "Of Studies". I explains how not all books should be taken to heart. We need to sift through the knowledge books provide us and ,when a golden nugget is found, really let it sink into our thoughts. It important not to believe everything you read. We should always be reading but not immediately put so much stock in what we are reading.