Yes.

'Atheism is the world of reality, it is reason, it is freedom, Atheism is human concern, and intellectual honesty to a degree that the religious mind cannot begin to understand. And yet it is more than this. Atheism is not an old religion, it is not a new and coming religion, in fact it is not, and never has been, a religion at all. The definition of Atheism is magnificent in its simplicity: Atheism is merely the bed-rock of sanity in a world of madness'

Cited from, (http://www.infidels.org/library/modern/emmett_fields/affirmative_atheism.html)

Further interest in this matter, head here.