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For duty is to be a practical, unconditional necessity of action; it must therefore hold for all rational beings (to whom an imperative can apply at all), and for this reason only be also a law for all human wills.

Where these words come from

How sure this is
95% sureThese words were traced back to where they first appeared. That source is listed below.
What turned up
Fundamental Principles of the Metaphysic of Morals; source text line 1560; English translation: Thomas Kingsmill Abbott
Work
Fundamental Principles of the Metaphysic of Morals; source text line 1560
Sources checked
  • gutenberg.orgChecked using manual, 19 October 2026Fundamental Principles of the Metaphysic of Morals; source text line 1560; English translation: Thomas Kingsmill Abbott

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