The conflicting missions of the two armies seemed to have no fog, no gray, only black-and-white clarity. I had lived my life in terms of compromise, rule-bending, trade-offs, concessions, bargaining, striking deals, finding middle ground. In these two great armies, there was no such thing. Good was good, and evil was evil, and they shared no common ground.
If there is a case for mental events and mental states, it must be that the positing of them, like the positing of molecules, hassome indirect systematic efficacy in the development of theory.