For the human tribe

We are hardwired for tribal success, to insure the future of humanity.

This is the heart of atheism. Atheists want to learn all they can to keep the human tribe alive, prospering, and advancing.
As knowledge of fire kept the nocturnal predators away, so knowledge of the natural universe keeps the religious predators at bay.

The tribe is stronger in knowledge than belief.

Thunderstorms are not angry gods.
Lightning is not Zeus casting bolts from Olympus.
Plagues do not happen because we are sinners.

Tribal survival depends on knowing what is going on within the tribe and without.
We must know who is trying to usurp power from the people of the tribe for their own purposes. And we must know where we are in the scheme of all things.

Knowledge is everything.
We homo sapiens are the keepers of knowledge and we must resist and defy any and all superstitions that would corrupt our knowledge in the name of religious power.

For the human tribe.