I said it was a brutal thing.No, it was a human thing. You should not insult the brutes by such a misuse of that word; they have not deserved it.

~ Mark Twain

Mark Twain Brutality Brutes Evil Human Nature Moral Sense Morality

What we now call morality was evolved – as nearly all social and physical human attributes were – to aid us in survival and, ultimately, reproduction. This morality requires only that we be guided by our developed conscience (or moral sense) – and not a God or gods.

~ David G. Mcafee

David G. Mcafee Conscience Evolution Of Morality Moral Landscape Moral Sense Morality