I like to think about things that have always been the same, from remote human history up to and including now. People's heads have always been about as hard as they are today and have hurt about the same amount when they bumped together. Horses have always shaken flies off themselves, whether waiting to pull Pharoah's chariots or standing at a kiddie ride at a county fair. Meat cooking on a fire has smelled delicious in exactly the same way forever.
- Ian Frazier, Paradise Bronx, p.24