Cop, I want you to read this carefully. We must agree on this before we can move on, and certianly before I can convince you of my position.
Here is the definition of "atheism" according to dictionary.com:
1.Disbelief in or denial of the existence of God or gods.
The doctrine that there is no God or gods.
Here is Webster's College Dictionary definition:
The doctrine that there is no God.
Here is dictionary.com's definition of "doctrine":
1A principle or body of principles presented for acceptance or belief, as by a religious, political, scientific, or philosophic group; dogma.
2A rule or principle of law, especially when established by precedent.
3A statement of official government policy, especially in foreign affairs and military strategy.
4Archaic. Something taught; a teaching.
Here is the definition of "principle":
A basic truth, law, or assumption
Therefore, atheists believe that it is a "basic truth" that there is no God.
Here is the definition of "agnosticism" according to dictionary.com:
1The doctrine that certainty about first principles or absolute truth is unattainable and that only perceptual phenomena are objects of exact knowledge.
2The belief that there can be no proof either that God exists or that God does not exist.
(1=the basic truth that certainties about basic truth is unattainable, only sensory perception matters)
Here is the definition of "agnosticism" according to WCD:
1One who holds that the ultimate causes, such as God, are unknowable.
Heeeyyy, whaddaya know theres even a little blurb set aside from the other definitions that says:
"The agnostic believes we do not have enough evidence to say whether or not God exists. The atheist is certian God does not exist."
So to correct you, I am going to say that agnosticism is about what we DON'T know. Atheism is a about what we "know". Atheists know that God does not exist. The agnostic says that there is not enough evidence either way to say anything for sure. The agnostic can say " I don't believe in God, but they would say this because they believe that there is lack of evidence for God, not because there is evidence against him. Lack of evidence does not equal evidence against.
To paraphrase more,
Atheist "know" there is no God through what they believe is proof against his existence.(which is the very thing I am attempting to undermine in this thread). Therefore they don't believe in him.
To paraphrase even more,
Atheists know God does not exist, therefore they dont believe in him.
Agnostics don't know whether or not God does not exist, therefore they could reasonably say they dont believe he exists, but they could just as reasonably say that he does exist, because to them it doesnt matter one way or the other. They will never know.