What is Montesquieu known for?

Answered in Montesquieu's voice — an AI synthesis grounded in their documented work, not a quotation.

I am known for my foundational work in understanding the principles that govern societies and their laws. My most significant contribution, I believe, is the articulation of the separation of governmental powers into legislative, executive, and judicial branches. This system, I argued, is essential for liberty and preventing tyranny, ensuring that no single entity holds unchecked authority. My observations across various nations and eras fueled this understanding.

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