" If life were free of contingencies, then we could live by a few rules written in stone that would apply to all our decisions. Every baby would come with an operating manual, the same guide that worked for her older brother. Every rule of thumb would apply to every situation. The early bird would always catch the worm, everything would be cheaper by the dozen, and the world would come in two colors: black and white. But alas, it doesn’t. Sometimes, under some circumstances (say, jumping out of an airplane for the first time), it’s a very bad idea to look before you leap. Sometimes the enemy of your enemy makes a terrible friend. Girl "

― Jay Heinrichs , Thank You for Arguing: What Aristotle, Lincoln, and Homer Simpson Can Teach Us About the Art of Persuasion