Every major religion today is a winner in the Darwinian struggle waged among cultures, and none ever flourished by tolerating its rivals. – E. O. Wilson

Religious suffering is at once the expression of real suffering and a protest against real suffering. Religion is the sigh of the oppressed creature, the sentiment of the heartless world, as it is the soul of soulless condition. It is the opium of the people. – John Desmond Bernal

It is an old habit with theologians to beat the living with the bones of the dead. – Robert G. Ingersoll