1. "The most ridiculous concept ever perpetrated by Homo Sapiens is that the Lord God of Creation, Shaper and Ruler of the Universes, wants the saccharine adoration of his creations, that he can be persuaded by their prayers, and becomes petulant if he does not receive this flattery. Yet this ridiculous notion, without one real shred of evidence to bolster it, has gone on to found one of the oldest, largest and least productive industries in history."

- Robert Heinlein

2. "Of all the systems of religion that ever were invented, there is none more derogatory to the Almighty, more unedifying to man, more repugnant to reason, and more contradictory in itself than this thing called Christianity. Too absurd for belief, too impossible to convince, and too inconsistent for practice, it renders the heart torpid or produces only atheists or fanatics. As an engine of power, it serves the purpose of despotism, and as a means of wealth, the avarice of priests, but so far as respects the good of man in general it leads to nothing here or hereafter."

- Thomas Paine

3. "The great religious ages were notable for their indifference to human rights. not only for acquiescence in poverty, inequality, exploitation and oppression, but also for enthusiastic justifications for slavery, persecution, abandonment of small children, torture, and genocide... Moreover, religion enshrined hierarchy, authority, and inequality. It was the age of equality that brought about the disappearance of such religious appurtenances as the auto-da-fe and burning at the stake."

- Arthur Schlesinger Jr.c