"First, click on the "Take Action" option at the bottom right corner of your original post. Next, go down to "Reply With Quote".
Sorta like I just did"
Or - you can drag your cursor across the text/photo you want to copy, right click for Copy, and Paste it into your post.
Sorta like I just did...(I added the Bold and the quotation marks).
I use both methods; just depends.