Which French aristocrat wrote The Spirit of Laws, urging separation of powers among government branches?

• A. Voltaire
• B. Jean-Jacques Rousseau
• C. Thomas Hobbes
• D. Baron de Montesquieu

Answer: (D)

Separating government powers into distinct branches helps prevent any one part from gaining too much control, creating checks and balances that protect liberty. In The Spirit of Laws, the French aristocrat Baron de Montesquieu argued that legislative, executive, and judicial powers should be held by separate bodies, with each able to check the others. This idea is foundational for constitutional design because it reduces the risk of tyranny and promotes accountability.

Montesquieu also noted that the best form of government can depend on a country’s circumstances, but the principle of dividing power remains central. By contrast, Voltaire, Rousseau, and Hobbes were influential thinkers in the Enlightenment era for different reasons—Voltaire championed civil liberties, Rousseau emphasized the social contract and popular sovereignty, and Hobbes argued for a strong sovereign—yet none penned The Spirit of Laws.