The text below is the exact source material used for this statement.
The writers of our Constitution wanted to keep it simple and they only saw a few functions that the national government should have. Have you ever heard of the KISS pinciple? "Keep it simple, stupid." Most constitutional courses say there are only four functions in the Constitution, namely, the power to raise and maintain an army for self-defense. The power to create and run a post office. The power to govern the interstate commerce between the states. And finally, the power to pass legislation which we call laws. This is fairly simple, and that's the point I'm trying to make. When you boil down the Constitution to it's basics it's really pretty simple. And why did they want to keep it simple? So they could go back to their farms and live life in peace. Because isn't that what life is about? Namely, enjoying one's family and living with your neighbors in peace? It's just common sense. Which brings me to our final point.