XML—…fundamental Lisp data structures reinterpreted by people with bad taste brainwashed by inflexibility

I was most impressed by this characterisation of XML in “The Art of Lisp & Writing” by Richard Gabriel (http://www.dreamsongs.com/ArtOfLisp.html):

XML—which amounts to some fundamental Lisp data structures reinterpreted by people with bad taste brainwashed by inflexibility.