Our way of thinking is limited by the metaphors we chose. Chose
  metaphors carefully and know the places where reality breaks
  away from the metaphors. If not, the metaphors will limit our
  thinking and all the work will be done to support the metaphor
  and less the reality it's designed to represent.
  This can lead us in very wrong thinking very quickly and we
  won't even be aware of it if we're not careful.