QUIZ: Can You Name These Historical Figures?

Who coined the phrase “I think, therefore I am”?

Retry Correct Incorrect While all of these people are famous philosophers, it was the French philosopher Rene Descartes who coined the phrase “I think, therefore I am.” Descartes is one of the most notable figures of the Dutch Golden Age.

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Imagno/Getty Images

Imagno/Getty Images

Who coined the phrase “I think, therefore I am”?

• Karl Marx
• Rene Descartes
• Plato
• Voltaire