The aim of every political constitution is, or ought to be, first to obtain for rulers men who possess most wisdom to discern, and most virtue to pursue, the common good of the society; and in the next place, to take the most effectual precautions for keeping them virtuous whilst they continue to hold their public trust.

James Madison (1751-1836) American statesman, political theorist, US President (1809-17)
The Federalist #57 (19 Feb 1788)