Mark twain says humans are the only evil creatures

...I never thought about it that way...well damn.

Wow. That's actually really weird to think about, and actually is quite true

Bruh

that's the whole point of the Adam and Eve story: Adam and Eve ate from the Tree of Knowledge of Good and Evil and so then were no longer innocent.

Rousseau, a philosopher, also believed this

Original sin is rediscovered.

Yes true but think if we didn't have a moral sense of right and wrong. We'd just be going on instinct, not thinking, just doing. We might be eating each other just as some species of snakes do, but our morals stop us from doing something "wrong" in the end

Pick up a bible, you heathens. This is literally the whole point behind Genesis and the first humans eating from the tree of the knowledge of good and evil. This theory didn't start with Mark Twain, it started with freaking Moses.

Animals DO have a moral sense though

he is evil and stupid