On energy pills

Part of the strain of modern life comes from the constant need to be on "on duty" so to speak. When we lived in caved, life as a whole was much tougher, but in some ways it was easier. That is, if you felt tired, you laid down and rested, unless you were starving. Of course, you were often starving. But if you were a man and you'd just brought home a deer, you could spend a few days hanging around, relaxing in the sun. You didn't need to take energy pills to keep yourself going the next day. You got to rest and relax until the meat was going or turning bad or something, and so your family wanted fresh food, then you had to go back out into the woods and kill something else again.