“When I became convinced that the universe is natural, that all the ghosts and gods are myths, there entered into my brain, into my soul, into every drop of my blood the sense, the feeling, the joy of freedom. The walls of my prison crumbled and fell. The dungeon was flooded with light and all the bolts and bars and manacles became dust.” (Robert G. Ingersoll)
"The world is my country; all of humanity are my brethren; and to do good deeds is my religion." (Thomas Paine)