Here's a double-dactyl that I recently wrote about Diogenes of Sinope. Most of the anecdotes about his life are likely apocryphal, but they illustrate the principles by which he lived.

Higgledy-Piggledy
Cynic Diogenes
Picked up a lantern and
Started his search;
Looking for honesty,
Peripatetically,
Wore out his shoes and left
Him in the lurch.