Constitution: Most important principle

The U.S. Constitution has four main principles; federalism, checks and balances, limited government, and separation of powers and out of those four I think that limited government is the most important because it limits the government. Firstly it keeps the government from stepping all over their citizens, secondly it would work even without checks and balances and separation of powers already doing their parts to limit the government because it sets restrictions on what they are able to do to the american population. Finally limited government acts as a leash, keeping the government from running wild and taking whatever they want.