The concept of sacrificing now for later is hard-wired into our primitive brains. We had to become aware of time before this. We had to consider thefuture. To become aware of the future, we had to become aware of our own mortality and vulnerability. Once we know our days are numbered, we become aware of the manners in which we can increase those days. We are capable of increasing our chances of seeing tomorrow. In order to guarantee tomorrow comes, we must sacrifice.
