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English definition of “first principles”

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first principles

noun [plural] uk   UK us  
the basic and most important reasons for doing or believing something: We seem to have forgotten why we're fighting this campaign - we really need to return to first principles.
Translations of “first principles”
in Chinese (Traditional) 根本原則,首要原則…
in Chinese (Simplified) 根本原则,首要原则…
(Definition of first principles from the Cambridge Advanced Learners Dictionary & Thesaurus © Cambridge University Press)
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