The theory of evolution by cumulative natural selection is the only theory we know of that is in principle capable of explaining the existence of organized complexity.
Nature is not cruel, pitiless, indifferent. This is one of the hardest lessons for humans to learn. We cannot admit that things might be neither good nor evil, neither cruel nor kind, but simply callous -- indifferent to all suffering, lacking all purpose.
Let us understand Darwinism so we can walk in the opposite direction when it comes to setting up society.
Religion is about turning untested belief into unshakeable truth through the power of institutions and the passage of time.
We are all atheists about most of the gods that societies have ever believed in. Some of us just go one god further.
They are in you and me; they created us, body and mind; and their preservation is the ultimate rationale for our existence. They have come a long way, those replicators. Now they go by the name of genes, and we are their survival machines.