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470 BCE
Socrates
Socrates was a Greek philosopher and the main source of Western thought. Little is known of his life except what was recorded by his students, including Plato. -
Thomas Hobbes
Thomas Hobbes, an English philosopher in the 17th century, was best known for his book Leviathan (1651) and his political views on society. -
René Descartes
Philosopher and mathematician René Descartes is regarded as the father of modern philosophy for defining a starting point for existence, “I think; therefore I am.” -
Baruch Spinoza
Benedict de Spinoza was among the most important of the post-Cartesian philosophers who flourished in the second half of the 17th century. -
David Hume
David Hume was a Scottish philosopher, historian, economist, and essayist, who is best known today for his highly influential system of radical philosophical empiricism, skepticism, and naturalism. -
Immanuel Kant
Immanuel Kant was a German philosopher during the Enlightenment era of the late 18th century. His best known work is the Critique of Pure Reason.