My interpretation: "As a woman, you are stuck with not being allowed to speak what you think, but there is a workaround for this."
It's a line from a play called Love for Love. The quote is voiced by a character; so the presentation here lacks that context. The play was satirical, and I wouldn't take the quote at face value. I think Congreve was voicing what had become the standard social games of his time - say like Barney on How I Met Your Mother.
(Since there didn't seem to be one for this month, and I just ran across a nice quote.)
A monthly thread for posting any interesting rationality-related quotes you've seen recently on the Internet, or had stored in your quotesfile for ages.