A version of the liar's paradox, attributed to the philosopher Epimenides in the sixth century BC. "All Cretans are liars... One
of their own poets has said so." This is not a true paradox since the poet may
have knowledge that at least one Cretan is, in fact, honest, and so is lying when
he says that all Cretans are liars. There therefore need be no self-contradiction
in what could simply be a false statement by a person who is himself a liar.
A sharper version of the paradox (which has no such loophole) is the Eubulides
paradox, "This statement is false."