I started the Pontifex hash tag but it got mixed up with the Pope Benedict ones - so I did some with #PopeQuotes but there are lots already, about the Pope tweeting etc. I meant Alexander Pope, the poet (1688-1744), you know?
There are so many great quotes and a lot which are relevant to language matters, journalism, Twitter and so on. How about this one:
Ask you what provocation I have had?
The strong antipathy of good to bad.
(From "To Augustus")
Whoever thinks a faultless piece to see
Thinks what ne'er was, nor is, nor e'er shall be.
(From "An Essay in Criticism")