Despite the confusion that abounds about these words, they have very strict definitions: The basic questions are a) whether there is a deity and b) whether one can know whether or not there is such a being. An atheist says one can know the answer, and the answer is no, belief in a deity is a superstition. An agnostic, strictly speaking, has adopted the position that the question is, by definition, unanswerable… not that one isn’t certain, but that the nature of the question is unanswerable (from the greek: a (not) gnosis (knowledge) = not knowable).
There was a wonderful interview with the late Isaac Asimov who in Free Inquiry magazine where he states (direct quote, I have it handy…)
“I am an atheist, out and out. It took me a long time to say it. I’ve been an atheist for years and years, but somehow I felt it was intellectually unacceptable to say one was an atheist, because it assumed knowledge that one didn’t have. Somehow it was better to say one was a humanist or an agnostic. I finally decided that I am a creature of emotion as well as of reason. Emotionally I am an atheist. I don’t have the evidence to prove that God doesn’t exist, but I so strongly suspect he doesn’t that I don’t want to waste my time.”
Personally, I was raised Roman Catholic. Being the second of three sons, there was a family plot to get me to go into the priesthood (I guess the other two were sufficient to provide continuity for the family name and a “spare”, just in case…) The local parish priests were in on this, and there was real pressure to find someone with a “vocation” in this new, suburban parish. Sadly for them, part of my “accelerated” religious education was exposure to the Aquinian idea that proof of existence of god (as defined by the Catholic church) could be determined by reason alone.
Now, if the local parish priests had been Jesuits, and had I been a little less on the ball, they might have convinced me. Redemptorists, however, come from a tradition of piety rather than one of intellectual rigor. Shall we say that, having told me that the existence of god could be determined by reason alone, and then having been unable to demonstrate this, the parish priest could himself be said to have confirmed me as an atheist. I swallowed the part about the question being answerable, but couldn’t swallow the answer he tried to give me.
As to whether or not I have any deep animosity towards the Church itself, strangely enough, I don’t. I think most of what they do is rather silly, but they do provide a great deal of emotional support to their believers. Since they aren’t currently doing the Inquisition thing anymore, I am willing to accept that, on the whole, they help those who believe more than they hurt them. Indeed, with the whole liberation theology construct out of Latin America, they often serve a positive social function.
Still, on many fundamental issues they are wrong, and in individual cases and on specific issues (abortion, lesbian and gay rights come to mind) they do a lot of damage.
So, count me in as an Atheist… out of the closet about it too.