Since Logic derives from postulates, it never has, and never will, change a postulate. And a religious belief is a system of postulates ... so how can a man fight a native superstition with logic? Or anything else ...? Illustrated by Bernklau Miles Gilbert watched the landscape slide away below him, its quilt of rounded treetops mottled red and orange in the double sunlight and, in shaded places, with the natural yellow of the vegetation of Kwannon. The aircar began a slow swing to the left, and