Obsidian - Sharpen your thinking (2025)

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In Meditations on First Philosophy the philosopher René Descartes describes a series of doubts about the nature of reality, arriving at the famous phrase:

  • [[I thin]]
  • I think therefore I am
  • Just think about it
  • Thinking, Fast and Slow

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  • The Thing

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He argues that doubting requires thinking, and therefore, the act of thinking confirms his existence.

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Lecture 1

Rationalists

  • Reason and innate knowledge → acquire knowledge
  • Fundamental truths and principles can be known independent of experience
  • A priori reasoning
  • Reason and deduction

Empiricists

  • Experience and sensory perception → acquire knowledge
  • All knowledge is derived from experience and observation of the external world
  • A posteriori reasoning

Cogito, ergo sum

In Meditations on First Philosophy the philosopher René Descartes describes a series of doubts about the nature of reality, arriving at the famous phrase:

I think therefore I am

He argues that doubting requires thinking, and therefore, the act of thinking confirms his existence.

Philosophers

Obsidian - Sharpen your thinking (1)

Obsidian - Sharpen your thinking (2)

Obsidian - Sharpen your thinking (3)

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Obsidian - Sharpen your thinking (2025)

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