The centipede was very good at walking with its hundred legs. It never spent a thought on just how it could walk. Until one day, when a big black bug asked the centipede “How can you manage to walk with all those feet? Don’t you find it hard to coordinate their rhythm?” The black bug already left, when the centipede was still sitting down, pondering how it could walk, wondering, and (for the first time in his life) even worrying a little bit. From that day on, the centipede couldn’t walk anymore.