Knowing is not understanding. There is a great difference between knowing and understanding: you can know a lot about something and not really understand it.
“Chris Columbus was really interesting to watch how he works with children.”
“The central ideas of Christianity, an angry God and vicarious atonement, are contrary to every fact in nature, as also to the better aspirations of the human heart; they are, in our present stage of enlightenment, absurd, preposterous, and blasphemous propositions.”