I like what you said but there is an issue:

   "No constant something"
   "No constant definition"

   Those are constant somethings and definitions.

   This context _becomes_ the very single context with which all
   others are to be viewed from.

   That doesn't make it wrong or right - just an easy trap to fall
   into; that of saying, "all is relative", except for "all is
   relative", which is a fixed certainty.

   But outside of that, I like how you think.