When I am writing a message, how do I include a quote from another page?

I might be a bit slow, but I haven’t managed to include a quote form another page in a message yet, can anybody tell me how to do it?

I just copy the text, paste it in and wrap it in quote tags. But maybe I’m old fashioned? I’m not sure if the quote can contain an arrow link to the original thread, if that’s what you mean, but it’s easy enough to post a link.

Ok, thanks for that, I guess I was hoping to do it using the ‘quote’ button as I have in this reply, but I don’t know how to do this across pages.