It’s humbling to go to the library every once in a while. Standing in the stacks reminds you of all the things you don’t know – regardless of whether you think of these as the things you have left to learn, the things you’ll never know, or the things that others don’t know either so you’re clearly not all that inferior. If you’re too
lazy busy to walk to the library, watching this video might suffice.
Edited to add: Apparently BBC blocked the video. UK readers are still able to see it (part of the “Super Smart Animals” program) here.