When you search on a topic for which there's a widely reported quote, our system will show it at the top of the search results page, along with all stories on the topic. As there can be many common quotes for a given story, our algorithm will show the quote that has the highest occurrence among the articles about this topic. There is also a link to all quotes by that person on our full Quotes page.
The quotes that appear on each Quote page are ranked by their relevance, which we determine by a number of factors. The selection of the site from which we display a quote is based on the same rankings we use for articles in Google News. In other words, the quote we show comes from the highest-ranked site in Google News that holds this quote.