Planet13 - 9:10 pm on Jul 20, 2013 (gmt 0)
To think of this another way...
Maybe you have a review site that reviews widgets. You have lots of detailed reviews about different widgets out there.
Would it be a BAD idea to also include the manufacturer's description of the widget on that review page since the manufacturer's description already appears elsewhere (such as on the manufacturer's product page and on the pages of all their affiliates)?
would it be possible that:
1) Your site will be demoted because you have content found on other sites?
2) Your pages will be demoted because the RATIO of unique content to public domain content has been lowered by the inclusion of content that is available on other sites?
I think these are the key points the original poster was trying to ask. I apologize if I am assuming wrong here.