The purpose of government is to enable the people of a nation to live in safety and happiness. Government exists for the interests of the governed, not for the governors. As Benjamin Franklin wrote, "In free governments the rulers are the servants and the people their superiors and sovereigns." The ultimate powers in a society, therefore, rest in the people themselves, and they should exercise those powers, either directly or through representatives, in every way they are competent and that is practicable.
"[The people] are in truth the only legitimate proprietors of the soil and government." --Thomas Jefferson to Pierre Samuel Dupont de Nemours, 1813.
"[It is] the people, to whom all authority belongs." --Thomas Jefferson to Spencer Roane, 1821.
"The ultimate arbiter is the people of the Union." --Thomas Jefferson to William Johnson, 1823.