"They've always classed paranoia as a mental illness.  But it isn't!  There's no lack of contact with reality--on the contrary, the paranoid is directly related to reality.  He's a perfect empiricist.  Not cluttered with ethical and moral-cultural inhibitions.  The paranoid sees things as they really are; he's actually the only sane man." —Philip K. Dick, "Null-O," The Philip K. Dick Reader