Of course, when Epimenides of Crete
says "all Cretans are liars
", there is no paradox
; this means that not all Cretans are liars, i.e. that there exists
at least one Cretan who tells the truth. This is entirely plausible. Indeed, suppose Crete
were populated by just Epimenides and his brother Epidermis
. It could be that Epimenides is a liar, while his brother tells the truth.
So the historically accurate version doesn't work. But having Epimenides say "I am a liar" does.