I'm a little confused as to why. 1+1=2 is the result of the
   application of mathematical axioms. Is the existence of such
   axioms a deterrent to objectivity?   Law of Excluded middle is
   also a good moral. it is a good morality of certain forms of
   Logic.

   "This cannot [x] because [y]"

   You're applying morality. Heuristics. If I had to dispense of
   rules and standards and was allowed only one to apply to all
   disciplines, it's heuristics. But I am a pragmatist at heart.