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Richard A. Muller uses the word “influence” when writing historical theology, and so I think we can use it too. For we all know how Muller makes a great “impact” in the field. [fixed the typos]
Yes, but Muller is also aware of the challenges in accounting for relationships in intellectual history. Influence is necessarily vague. Another cause for reluctance, I think, is the etymology:
I doubt that many people intend that sense now this particular aspect of the argument against it doesn’t move/influence me but out of deference I’m trying to broaden my vocabulary.