Related:

• An expert is a person who can take something you already know and make it sound confusing.
• There are some people who, if they don't already know, you can't tell em. -- Yogi Berra
• Inquiring minds already think they know!
• It's hard to communicate when you already know what you want to hear.
• Learning is finding out what you already know -- Richard Bach
• I've already told you more than I know.
• Telephone books are like dictionaries -- if you know the answer before you look it up, you can eventually reaffirm what you thought you knew but weren't sure.
  But if you're searching for something you don't already know, your fingers could walk themselves to death....