Hullo! I think it's a blockquote you're after. You do this.
<blockquote>Then type all the text you wanted indented in here and then end it with a backslash blockquote like this</blockquote>
If it works
It should look like this and be nicely separated from the rest of the text and it's up to you if you want to put a line between the main text and the quoted text
no subject
Date: 2009-08-25 11:42 pm (UTC)<blockquote>Then type all the text you wanted indented in here and then end it with a backslash blockquote like this</blockquote>
If it works
Hope that helps!