If you went back to visit your earliest known primate ancestors, you’d find them in the trees. New fossil evidence shows Purgatorius, a small, squirrel-like insect and fruit-eating mammal, was a tree-dweller.
Think of a time when you were treated unfairly. Really cast your mind back to that time and how you felt. Maybe your teeth clenched. Maybe your cheeks burned. Makes you mad just thinking about it, doesn’t it?
Say you meet some guy in a business suit. Maybe he’s got slicked back hair and a ponytail, maybe he reads a lot of Ayn Rand. And that guy tells you that it’s a dog-eat-dog world out there, that a person is just a miserable animal only in it for itself, and that you have to screw over others before they screw over you?