Do you realize what it is that is causing world chaos? ... it's Nature hitting back. Not with the old weapons—floods, plagues, holocausts. We can neutralize them. She's fighting back with strange instruments called neuroses. She's deliberately afflicting mankind with the jitters. Nature is proving that she can't be beaten—not by the likes of us. She's taking the world away from the intellectuals and giving it back to the apes.—ROBERT E. SHERWOOD, Petrified Forest.
Excellent film, btw, and the precursor to "film noir." Humphrey Bogart's appearance was his first film success.