Here's a better option. Follow carefully.
==first time setup==
1) Click the Profile button at the top of the page.
2) Click "Look and Layout Preferences" on the left of the page.
3) Change "Use quick reply on topic display" to "show, off by default".
==the actual quoting==
4) Now, go back to the page containing the post you want to quote.
5) Scroll back to the bottom and click on "Quick Reply".
6) Now, scroll back up and click "Quote" on the post you want.
7) The text will appear in the Quick Reply box below.
8) Copy the text to wherever you want it.
ps: This also allows nested quotes.