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All time Quote by Marcus Tullius Cicero

“There is in fact a true law namely right reason, which is in accordance with nature, applies to all men and is unchangeable and eternal. ... It will not lay down one rule at Rome and another at Athens, nor will it be one rule today and another tomorrow. But there will be one law eternal and…” quote by Marcus Tullius Cicero
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“There is in fact a true law namely right reason, which is in accordance with nature, applies to all men and is unchangeable and eternal. ... It will not lay down one rule at Rome and another at Athens, nor will it be one rule today and another tomorrow. But there will be one law eternal and unchangeable binding all times and upon all peoples.”

Marcus Tullius Cicero

About This Quote

Source Speech: De Legibus (On Laws), c. 50 BC

Universal reason aligns with nature, creating an immutable law that applies equally to all peoples across time.

In simple terms: Reason is a timeless, universal law.

Key Takeaway

Respect natural reason in decisions.

Themes

reason law universality ethics

Mood

thoughtful serious

Type

philosophical ethical

When to use this quote

  • legal theory
  • cross‑cultural ethics
  • policy making

Key Concepts

natural law philosophy

Questions to Reflect On

  • What natural law guides your actions?
  • Can universal reason accommodate cultural differences?
A Different Perspective

Human interpretation can distort what is considered “natural.”

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