Meaning of sentence: The imposition of crude categories of class...

[Sophie]

Hi!
I don't understand the meaning of this sentence:
But a language like English is still evolving, and great harm can be done to it by THE IMPOSITION OF CRUDE CATEGORIES OF CLASS.
Thank you very much !!
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On earth there is nothing great but man, in man there is nothing great but mind.

[Alan]

Hi,

I think it means that English as with any living language is still developing and changing and therefore it is difficult to put restrictions on how you would classify it.

Alan
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English as a Second Language
You can read my ESL story Present Simple

[Sophie]

I've got it. Thank you very much !!
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On earth there is nothing great but man, in man there is nothing great but mind.