.

Considering this, is quoting someone Copyright Infringement?

Plagiarism is the unacknowledged use of the work of another — falsely claiming or creating the impression that you are the creator of someone else's work. And citing the source always cures plagiarism. Citation, however, does not cure copyright infringement, which is the unauthorized use of another's work.

Also, are celebrity quotes copyrighted? So to sum it up. Quotes can be trademarked if they're recognisable and mention famous characters. Everyone has the copyright to anything they write down, but it won't be protected if the sentence is short or generic.

Also question is, can you use a quote without permission?

The answer is: If quoting without permission results in copyright infringement, then you need to get permission. Another exception is if the material falls under public domain, like ideas, titles of books, slogans, and names—things that cannot be copyrighted.

How do you determine if a quote is copyrighted?

Trademark

1. Go to the Trademark Electronic Search System at the official website of the U.S. Patent and Trademark Office. Use the "Basic Word Mark Search (New User)" search.
2. Widen the search and search again if you're not sure of the exact phrase.
3. Click the "Logout" button beneath the search fields when finished.