What are Japanese equivalents to saying that something is a principle, doctrine, or philosophy? You know, things that would be phrased as something like "The ________ Principle/Doctrine", or "The Philosophy of ________" in English?

I've found a couple of ways, using words like 法、理、原理、原則、義、etc. but I'm not sure which to use or how to use it as to form normal-sounding phrases with the proper nuance.

  • Not sure whether this is right, but maybe try 「論・理論」. Jul 29, 2017 at 4:50
  • 1
    Well for something like the Archimedes Principle, that's アルキメデスの原理{げんり}. I think 論 is more like "theory".
    – A.Ellett
    Jul 29, 2017 at 5:53

1 Answer 1


Depending on where you use it, but if you look at famous usages they are translated into as:

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