Rocky Mountain News: Columnists - Paul Campos If you talk to God," the maverick psychiatrist Thomas Szasz once observed, "that's called 'prayer.' If God talks to you, that's called 'schizophrenia.' " Szasz's point was that the concept of mental illness is deeply problematic, because it is impossible to draw a clear line on the spectrum of human beliefs between those that are merely unorthodox and those that are considered delusions.