What is the purpose of the republic's noble lie?

The purpose of the noble lie is to make everyone believe that just because he or she was born in a particular place it makes him or her different from someone born in a different place, so that nations and the benefits of nations can exist. The lie convinces you that you are an "American" or "Chinese."

The lie conceals the truth: you were born a blank slate. Everyone is born a blank slate. When you strip away culture and convention, we are all the same.