Verifying who said it

On the internet, according to Abraham Lincoln, no one knows you are a dog. But the internet is worthless for checking the veracity of a popular quote. For that job I always head to the totally reliable Quote Investigator. This Sherlock Holmes goes to inordinate lengths, almost a magazine article worth of research, to discover, verify (or dismiss) the source of a quote. His investigations are educational, fun, trustworthy, and completely satisfying. If you have a recurring quote whose source you cannot track down, you can submit it to him. — KK