"Xenophanes used to say wittily that if the animals made gods for themselves,
as is likely they do, they certainly make them like themselves, and glorify themselves as we do."
Inquiry trumps faith.
"The only thing certain is nothing is certain."
Lack of empirical evidence
Discovery trumps revelation.
"Nothing is so firmly believed as that which is least known."
Reason trumps custom.
"Our religion is made to eradicate vices; instead it encourages them, covers them, and nurtures them."
The argument from evil
Autonomy trumps piety.
"Life in itself is neither good or evil, it is the place of good and evil, according to what you make it."