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Philosophical Dictionary

  • Descartes practicing methodical doubt in his study, throwing doubtful beliefs into barrel labeled "Doubtful Beliefs" while discovering Cogito ergo sum (I think therefore I am) certainty

    Cartesian Doubt Explained: How Descartes' Radical Skepticism Changed Philosophy Forever

    By Markus Uehleke

    Discover Descartes' method of doubt: the radical skepticism that challenged dogmatism and changed philosophy forever. Learn how questioning everything led to "I think, therefore I am" and why this 17th-century method remains essential for critical thinking in our age of misinformation and fake news.
  • A seaside cave at dusk, the sun fading. A large group of bats escape the cave as a cloaked figure holds a torch nearby to illustrate Thomas Nagel's "What Is It Like to Be a Bat?"

    Release the Bats!: Thomas Nagel's Subjectivity of Experience

    By Caroline Black

    We discuss Thomas Nagel's ideas on the limitations of human knowledge and how much we can know about subjectivity of experience outside our own. Can we know what it is like to be a bat?
  • I Think Therefore I Honk: The Cogito Explained

    I Think Therefore I Honk: The Cogito Explained

    By Caroline Black

    Existence is everything and nothing. How do we know we exist? Or even better, how do we know that other people exist? Something so basic as existence should be obvious, but is it really?  We don’t tend to wonder if...