Here is a paragraph. The paragraph contains a very famous sentence. It is a truth universally acknowledged, that a single man in possession of a good fortune, must be in want of a wife. Do you know who wrote this sentence?
Here is a paragraph containing a couple of links. This first link should appear as an unvisited link, as it is a link to a to a page you can't possible have visited. This second link is to the same page you are looking at now, which makes it a visited link. If the style sheet for this page distinguishes between visited and unvisited links, then the two links in this paragraph will look different from one another.
This is a blockquoted piece of text (that is marked up with <blockquote>)