Or you can highlight text - copy it (CNTL C) - & paste it (CNTL V) when you start your reply ... put it in quotes tho so all will know it's a quote.
"Easy peezy Dude..."
You'll get 'ragged' about this method tho
There are some benefits: saves bandwidth (really not a problem here), Keeps the original text even if the poster goes back & edits the original posting (that part has been fun in the past).