Religions in the heart, not in the knees. – Douglas William Jerrold

Selfishness is the only real atheism aspiration, unselfishness, the only real religion. – Franklin D. Roosevelt

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

The dissolution of the nation destroys the national religion, and dethrones the national deity. – William Robertson Smith