Did I ever show you this?
   [1]http://www.au.af.mil/.../milreview/paparone_metaphors.pdf
   It's a wonderful paper by an US Air Force professor called
   "metaphors we are led by".

   It's only about 10 pages long but a very good overview of
   metaphors that we don't even see most of the time, and the
   dangers of them.

References

   Visible links
   1. http://www.au.af.mil/au/awc/awcgate/milreview/paparone_metaphors.pdf