http://en.wikipedia.org/wiki/Greenspuns_tenth_rule http://en.wikipedia.org/wiki/Greenspuns_tenth_rule Any sufficiently complicated C or Fortran program contain

http://en.wikipedia.org/wiki/Greenspuns_tenth_rule http://en.wikipedia.org/wiki/Greenspuns_tenth_rule Any sufficiently complicated C or Fortran program contains an ad hoc, informally-specified, bug-ridden, slow implementation of half of Common Lisp.