Though most of the time random quotes and mentions of an author or creator won't have an impact on your brand or reputation, doing a little extra work to vet the people you highlight in your content is a good way to reinforce what you stand for.

It’s almost inevitable that consumers will draw parallels between you, your business, and the content you’re sharing. Whether those associations are positive or negative is largely up to you. 

Don’t risk losing the trust of your audience because of something that could be avoided with some upfront time and energy on your end.