“A writer must recognize normal standards of scholarly objectivity, give adequate evidence to back up assertions of fact, and proffer arguments in an unbiased, logical way. Observing such standards one says, in effect, what I offer is reliable; any reasonable person equipped with the same points of evidence and logic ought to arrive at similar conclusions. But as important as these standards are, they leave two fundamental questions unanswered. Where does my own personal interest in these topics come from? Why have I chosen to approach them in the way I have?”