Agnostic is a wienie word in my opinion. I think you either believe in a god or you or you don't have a belief in one. I think all Atheists will admit there is the possibility of some "god" like creature that "may" have had some influence on earth or the solar system at some point.
Rejecting the the biblical god(s) is one thing, to say there never was any god or super power being anywhere is hard to deny for any thinking being.
To argue with a man who has renounced the use and authority of reason, and whose philosophy consists in holding humanity in contempt, is like administering medicine to the dead, or endeavoring to convert an atheist by scripture.