We electors have an important constitutional power placed in our hands: we have a check upon two branches of the legislature, as each branch has upon the other two; the power I mean of electing at stated periods, one branch, which branch has the power of electing another. It becomes necessary to every subject then, to be in some degree a statesman: and to examine and judge for himself of the tendencies of political principles and measures.
The Works of John Adams, Second President of the United States (ed. 1851)