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All things Quote by Protagoras

“Man is the measure of all things, of the reality of those which are, and of the unreality of those which are not.” quote by Protagoras
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“Man is the measure of all things, of the reality of those which are, and of the unreality of those which are not.”

Protagoras

About This Quote

Source Fragment: Plato's Sophist, 4th century BC

Knowledge is judged by human perception; what exists is known, what does not is imagined.

In simple terms: Human perception defines reality.

Key Takeaway

Question your assumptions.

Themes

epistemology perception reality

Mood

thoughtful critical

Type

philosophical reflective

When to use this quote

  • debates
  • personal judgments
  • media analysis
  • scientific inquiry

Key Concepts

subjectivity relativism

Questions to Reflect On

  • How do you verify what you consider real?
  • Can you separate perception from fact?
A Different Perspective

Human bias can distort truth.

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