So you can "limit" "government"? The burden of proof is on you.
Wrong. The burden of proof is in the constitution. You know? That document that nobody takes the time to learn anymore...
Besides enshrining our most basic rights, not granting them, the constitution serves as the primary obstacle for government. You say that "I" need to somehow magically prove to you how government could be limited, and all I have to do is point to the constitution. It is up to the people, however, to keep vigilant and to hold their government accountable.