> This feature does enable a neat quine: the Perl program “Illegal division by zero at /tmp/quine.pl line 1.”, when saved in the appropriate location, outputs “

> This feature does enable a neat quine: the Perl program “Illegal division by zero at /tmp/quine.pl line 1.”, when saved in the appropriate location, outputs “Illegal division by zero at /tmp/quine.pl line 1.” The reason for this behavior is left as an exercise for the reader. For quines, see the chapter "Air on G's String", a dialogue between Achilles and the Tortoise in Douglas Hofstadter's book GODEL,ESCHER,BACH: AN ETERNAL GOLDEN BRAID.