Nietzsche has so many famous quotes it’s sometimes hard to choose just one (most have heard that which doesn’t kill you makes you stronger although I suppose few realize that it was the German philosopher who first penned it). My favorite, perhaps, is: there are no beautiful surfaces without a terrible depth. I like it in particular because in many ways it describes Nietzsche himself. His writing is often beautiful, but with a depth that sometimes takes time to fully recognize. In their n...