text: This article at Mercatornet actually bears on this topic/article.
  
  https://www.mercatornet.com/above/view/the-empire-of-mood-over-mind/20478
  
  Aside from the heavier style language of the philosopher-author and his pointer to Belloc I do think it's quite relevant here with this discussion of other religions. 
  
  The tension - and it's seen with the latest correction given to the pope - seems to turn around whether anything at all can be considered heretical.
  
  Heresy claims typically bring in assertions, logic, contradictions.
  
  They're dismissed by those that actually reject this form of coming to the truth about any matter that doesn't involve matters proper to science. 
  
  The tool of science only applies to the material world.  
  
  Rational inquiry is a technique used to explore both the material world, and by largely Christians alone the immaterial world as well.   Aristotle, Aquinas, etc. used rational inquiry.
  
  CS Lewis did too.