as far as I am concerned, he cannot say for sure that he knows that God does not exist
True. No one can say for absolute certainty that there is nothing out there that could be termed "god." However, based on the evidence, if something like that does exist, it is nothing like what we humans have thought up in the last several thousand years, and most definitely not the Judeo-Christian god.
So, he has no choice but to believe that God exists.
Wrong. He has no choice but to (honestly) state what you said above - that he can not be 100% certain. Or, as I tend to say, while it's possible that there is something out there that could be termed "god," the evidence seems to be pointing against such a thing.
If he knew for sure that God existed, he would not have to say that he believes in God.
Huh? What? If he knew for certain that God existed, he would have to state that he believes in god. Much in the same way that I believe in the computer in front of me, or the chair beneath me. Both objectively exist.
. It stands the reason then, that atheists cannot be sure about anything or they will be taken by fools.
Again, wrong. We can be certain of the things for which there is sufficient evidence (like the computer and chair I mentioned earlier). We can be fairly certain of the things for which there is a great deal of evidence. Neither instance makes us "fools." A fool would be someone who is certain of things for which there is either no evidence whatsoever, or direct evidience to the contrary.
In that case, he must believe that God exists, since he is not sure He does.
So, he must believe in an uncertainty? Are you truly that gullible? If so, I'm a prince from Nigeria who needs to transfer some money...
