?
2011-06-19 13:53:26 UTC
atheism - Disbelief in, or denial of, the existence of a god.
disbelieve - 1. trans. Not to believe or credit; to refuse credence to: a. a statement or (alleged) fact: To reject the truth or reality of.
agnostic - A. sb. One who holds that the existence of anything beyond and behind material phenomena is unknown and (so far as can be judged) unknowable, and especially that a First Cause and an unseen world are subjects of which we know nothing.
If someone is agnostic, holding that nothing is or can be known about a first cause and an unseen world, they, by default, would reject theism altogether, which is the nature of atheism.
"I have repeatedly said that in my opinion the idea of a personal God is a childlike one. You may call me an agnostic, but I do not share the crusading spirit of the professional atheist whose fervor is mostly due to a painful act of liberation from the fetters of religious indoctrination received in youth. I prefer an attitude of humility corresponding to the weakness of our intellectual understanding of nature and of our own being." (Albert Einstein)
Not that Einstein used agnostic and atheist as though they were synonyms.