Open Mind?

 Oh how they make me smile,
 opinions on that level,
 ’once upon' the world was flat...
 there were witches and a devil!
 
 I can but only shake my head
 wryly at lame conclusions,
 happy that I have a mind...
 not suffering delusions
 
 It niggles me I must confess,
 when they spout with such conviction...
 their views, that are apparently fact,
 eruditely and with such diction.
 
 A reasoned man, it seems to me...
 a thinker of this kind...
 would be aware to 'understand'
 requires an open mind.