A Budget of Paradoxes

Augustus De Morgan

So, naturalists observe, a flea
Has smaller fleas that on him prey;
And these have smaller still to bite ‘em;
And so proceed ad infinitum.

…And as an addendum
Great fleas have little fleas
upon their backs to bite ‘em,
And little fleas have lesser fleas,
and so ad infinitum.
And the great fleas themselves, in turn,
have greater fleas to go on;
While these again have greater still,
and greater still, and so on.