'Cyclically, the Middle deposed the High, by enlisting the Low. Upon assuming power, however, the Middle (the new High class) recast the Low into their usual servitude. In the event, the classes perpetually repeat the cycle, when the Middle class speaks to the Low class of "justice" and of "human brotherhood" in aid of becoming the High class rulers.'

https://en.wikipedia.org/wiki/The_Theory_and_Practice_of_Oli...

After the First English Civil War, there were two broad factions within the New Model Army: the Grandees (aristocratic wing) and the Levellers (the more radical, egalitarian, democratic and progressive republicans). Unfortunately, Cromwell’s faction won that particular power struggle and the rest is history. Nevertheless, this period of revolution acted as inspiration for the colonists in America, which in turn inspired the French republicans, thus influencing countless other revolutionary movements.

Related link: https://en.wikipedia.org/wiki/Putney_Debates