because what's a liar who says he's a liar ?
A Cretan? <img src="/ubbthreads/images/graemlins/biggrin.gif" alt="" />
sorry...
"epimenides the Cretan said all Cretans were liars"... very similar to Russel's paradox and to MeaCulpa sentence above...
edit: yep i know even quoting the good word above i was able to writte lyers instead of liars...