" Some people go through their whole lives never knowing what they really want. Add to that immaturity a certain lack of brainpower or a lot of personal problems and you’ve got a powder keg of a marriage.” “I’ve already told you my ex was not exactly a dummy.” “I’m talking about common sense, not academic ability. There’s a world of difference. It’s common sense that makes people act intelligently, not education. All education does is give you a wider frame of reference to utilize when you’re using your common sense to go over your options. A lot of people with Ph.D.’s make stupid decisions because they lack common sense. "

― Jayne Ann Krentz , The Adventurer (Ladies and Legends, #2)