I've got pie but I'm not a pion

http://mathworld.wolfram.com/TuppersSelf-ReferentialFormula.html

Somehow Greg Egan came to mind (as well as Douglas Hofstadter, the Douglas Hofstadter of self reference)

(pointed out by a colleague)

http://www.guardian.co.uk/lifeandstyle/2011/jun/20/dating-website-beautiful-people-members?utm_source=twitterfeed&utm_medium=twitter

"We have to stick to our founding principles of only accepting
beautiful people – that's what our members have paid for," said Greg
Hodge, managing director of BeautifulPeople.com. "We can't just sweep
30,000 ugly people under the carpet."