 According to the most usual definition, an atheist is a person who maintains that there is no God, that is, that the sentence “God exists” expresses a false proposition. In contrast, an agnostic [in the epistemological sense] maintains that it is not known or cannot be known whether there is a God, that is, whether the sentence “God exists” expresses a true proposition. On our definition, an atheist is a person who rejects belief in God, regardless of whether or not the reason for the rejection is the claim that “God exists” expresses a false proposition. People frequently adopt an attitude of rejection toward a position for reasons other than that it is a false proposition. It is common among contemporary philosophers, and indeed it was not uncommon in earlier centuries, to reject positions on the ground that they are meaningless. (Edwards 2006: 358)