Nobody in this world is perfect. Everyone makes mistakes. And as bad as these mistakes hurt us sometimes they are necessary for us to learn. Take the example of a hot stove. Everyone tells you that it is hot and that you shouldn't touch it. But you won't really learn that you shouldn't touch it untill you make the mistake, or choice, of touching it. It's all about choice. Should we always choose the correct option and never make a mistake and thus never learn. Or should we allow ourselves to make mistakes, to explore and experiment, to learn. Personally i prefer the second choice.