Madalyn Murray O'Hair, Amerikaanse atheïste en activiste, oprichtster van American Atheists, en bekend door het proces Murray vs. Curlett, dat resulteerde in de uitspraak van het Supreme Court, waarmee een eind kwam aan de praktijk van het verplichte dagelijks gebed in Amerikaanse openbare scholen.

If everything must have a cause, then God must have a cause. If there can be anything without a cause, it may just as well be the world as God, so that there cannot be any validity in that argument. It is exactly of the same nature as the Indian's view, that the world rested upon an elephant and the elephant rested upon a tortoise; and when they said, 'How about the tortoise?' the Indian said, 'Suppose we change the subject.' The argument is really no better than that.

~ Bertrand Russell