Biology is the study of complicated things that give the appearance of having been designed for a purpose

I think from my point of view - I won't say it doesn't matter whether [Darwinian explanations] are right or wrong, it's just sufficient in some cases, for me, to be able to say, Well, at least it's not totally implausible from a Darwinian point of view.

Let us try to teach generosity and altruism, because we are born selfish. Let us understand what our own selfish genes are up to, because we may then at least have the chance to upset their designs, something that no other species has ever aspired to do.

You are born into a dangerous world, there are all sorts of ways in which you could die, and you need to believe your parents when they tell you don't go near the edge of the cliff, or don't pick up that snake, etc. There could very well be a Darwinian survival value in that sort of brain rule of thumb. And a by-product of that could be that you believe your parents when they tell you about the juju in the sky, or whatever it might be.

I personally would go further and say that, if your morality is based, as mine is, on a desire to increase the sum of happiness and reduce suffering, the decision to deliberately give birth to a Down baby, when you have the choice to abort it early in the pregnancy, might actually be immoral from the point of view of the child’s own welfare.

Atheists sometimes come across as a bit arrogant in this regard, and characterizing faith as something only an idiot would attach themselves to.

Be thankful that you have a life, and forsake your vain and presumptuous desire for a second one.