Montesquieu: Montesquieu was a famous French philosopher whose idea of the separation of powers greatly influenced the framers of the US Constitution. He believed that dividing government power into separate branches would prevent tyranny and protect individual liberties.
Rousseau: Rousseau was another influential French philosopher who emphasized the importance of popular sovereignty, or the idea that political power should reside with the people. His ideas on democracy and social contract theory also had an impact on the development of democratic systems.
Voltaire: Voltaire was known for his advocacy for freedom of speech and religious tolerance. His writings inspired Enlightenment thinkers and played a role in shaping modern concepts like freedom of expression and separation between church and state.