Aristotle's Three Governments
Monarchy: best for large empires with many different needs. Flaw: Can become a tyranny.
Aristocracy: best for medium-sized regions that are relatively homogenous. Flaw: Can become an oligarchy.
Constitutional Democracy: best for small nations with a close-knit population. Flaw: Can devolve into either a radical democracy or anarchy.
He thought that Constitutional Democracy was best for most people.