—First I guess is that I seem to have been defining Atheist/Agnostic in a different way than you. To note, I was using the terms in the more popularly understood sense of “believes that there is no god” vs.” isn’t sure if there is a god”.—
This usage, in my opinion, confuses knowledge vs. belief.
Agnosticism is not, by my definition, a midway point between atheism and theism: it concerns a different aspect of one’s approach to god claims.
While atheists are often understood by many as believing that there is no god, many avowed atheists define it differently. Even for those that don’t, they still seem willing to label a person who says “I don’t believe in god” as being an “atheist,” despite the fact that the original statement does NOT mean the same thing as “I believe there is no god” (the supposed meaning of “atheism”)
It is also inconsistent with the original usage of the term (a = without, theism = god belief, as in words like amoral or asymetrical), and how many famous atheists and freethinkers have used the term.
One major problem is that theologians in the 16th century popularized the idea that not believing in (their) god required an active denial of god (since everyone, according to them, KNOWS that god exists). This ignored the very real position of simply being unconvinced in the first place, and their voices quite litterally drowning out all debate on the issue, it became convention (especially since in many eras, saying that one does not believe in god was a deadly mistake, both socially, legally, and sometimes even litterally). “Atheism,” as a term, has a lot of baggage like that.
Interestingly enough, the people most vehement proponents of the “atheism is a belief in no gods” idea were not theists (many of whom had come over to simply noting that atheists were non-believers, and others who had since developed newer theologies in which it again made more sense to speak of atheism as simply being non-belief) but “evangelical” agnostics, who felt that defining atheism in the original sense would take some of the wind out of their claimed position (since many of them would then be atheists, gasp!)
Some people will refer to “strong” atheism vs. “weak” atheism. This also helps clarify the rather nagging problem of “I believe there is no god” raising the question “which god are you talking about: all of them?” That is, one can be a “strong” atheist in regards to some god claims, and a “weak” atheist for all others (or only some others).
Regardless, if “atheism” is to include all avowed “atheists,” then the more inclusive definition is better: because it encompasses “weak” atheists but also contains “strong” atheists, who simply, in addition to not believing in god, also believe there is no god. That also helps clarify the difference between not having a belief, and having a belief that is contrary to another belief (in this case, theism).
—If (as I understand you to say) the more correct definition is “does not believe that there is a god vs. does not claim to know that there is a god” than I stand corrected.—
Well, these are definitions. Sometimes people use the words differently, and particulary on this issue, there is a fair amount of controversy, and I would suggest no necessarily right usage (words are, after all, just tools for communication, and they mean what they are defined as meaning, which can change from era to era, as well as context to context).
To make things easier, “non-theist” is one option for an alternate word to use, it not having the same baggage and certainly fewer negative connotation. It means everything I mean by “atheist” and I use the terms interchangeably, or just “non-theist” if someone refuses to use “atheist” as I do.
—Alger: Is this true? (that many theists are agnostics). This doesn’t quite make sense to me.—
It’s certainly true if we are to believe the word of many theists (which I would suggest we should, since they seem to simply be reporting honestly on their thinking).
Also note that it’s a common thing for people to say that someone believes something purely on faith (that is, without evidence or knowledge): even atheists. (I would certainly say that some anti-theists certainly seem to have positions that seem founded on what can only be called faith)
—Most people I know who believe in God recognize that they “know” He exists through their faith alone.—
This is often a different sort of know. They mean that they know god personally via faith (they believe in god’s active prescence in their life). This is not the usual sense of “know” in which one can provide the arguements behind the knowledge: it’s entirely subjective. But regardless of whether you agree with their use of terminology, plenty of theists do indeed exist who are fully avowed agnostics as well.
—Is there any other way to “know” He exists? In other words, on what basis could one be a gnostic?—
Regardless of whether you agree with it, Lib has offered one example of such an arguement by which it is suggested one could know that god exists. Plenty of other famous theist arguements are floating around: again whether or not you agree that they are convincing, their proponents certainly do claim that they provide knowledge of god’s existence, and thus do indeed claim to have gnosis.