I apologize if this has already been said ...
Atheism is about belief.
Agnosticism is about knowledge.
I am an atheist, in the sense that I do not believe in any god I've ever heard about. In fact, I believe that there are no gods, which is, I suppose, a slightly stronger statement.
I am an agnostic about there being something that might fit into the so-called spiritual realm. I do believe, in fact, very strongly, that whatever that thing might be, it will be simply an expansion on our knowledge of physics ... of how the world works.
I have absolutely NO belief in gods. None. I never have. No doubts, no recriminations, no second thoughts. I believe that the god concepts that have been stated by humans throughout history are completely and totally absurd. Some would say that makes me a strong atheist. My belief that there are no gods, as described by any humans so far, is as strong as my belief that there are no unicorns, no fairies, and no dragons. This is a strong enough belief that it is basically indistinguishable from knowledge. But I am a skeptic, a relatively logical person, and a stickler for the truth. And so I consider myself, above and beyond either agnostic or atheist labels, an open-minded skeptic. I will listen to any claims, but I am highly skeptical of all of them. Until, and unless, there is any actual evidence, you might as well call me an atheist, and the closer a god is to the Abrahamic god concept, the stronger my atheism. In other words, the bible, the koran, and the torah are, in my opinion, complete and utter bull. I am so very positive about that that I am willing to risk my "immortal soul." As far as I'm concerned, there is no risk whatsoever to that.
And to finalize this, I don't see how anyone can force belief. I challenge you to believe in Santa Claus. Can't do it, can you? That is how strong my disbelief is in god. Anyone who challenges me to try is barking up the wrong tree. Its a stupid idea, and a waste of my time.