“It’s easy K. on one side of the page you got your costs and on the other side your benefits. All you do is mark which one is which, then you weigh one side against the other and you get your decision just like that. that’s all you ever have to do. i live by this.”"But what if you don’t know the difference between a benefit and a cost? what if you’ve never been very good at telling a plus from a minus?”