Of governments there are said to be only two forms - democracy and oligarchy. For aristocracy is considered to be a kind of oligarchy, as being the rule of a few, and the so-called constitutional government to be really a democracy.
AristotleFor imagining lies within our power whenever we wish . . . but in forming opinons we are not free . . .
AristotleThose who have the command of the arms in a country are masters of the state, and have it in their power to make what revolutions they please. [Thus,] there is no end to observations on the difference between the measures likely to be pursued by a minister backed by a standing army, and those of a court awed by the fear of an armed people.
Aristotle