five principles of the constitution

popular soveriegnty
the power of the gov. comes from the people
limited power of government
the government can't do whatever it wants, it has limits and must follow the constitution
the federal gov. doesnt have all the power, some power must be given to the states and people
serparation of powers
not all power can go to one branch, it must be divided up
checks and balances
one branch checks the decisions or proposals of another branch