Ellen Johnson, President van de organisatie American Atheists van 1995 tot 2008, activiste voor de rechten van atheïsten en scheiding van kerk en staat in de Verenigde Staten.

We may define 'faith' as a firm belief in something for which there is no evidence. When there is evidence, no one speaks of 'faith.' We do not speak of faith that two and two are four or that the earth is round. We only speak of faith when we wish to substitute emotion for evidence.

~ Bertrand Russell