There's nothing new under the sun, or, to put it another way, there is nothing new about Twitter's 140-character format for microblog posts.

Jesus, after all, made pronouncements that were "brief and full of meaning," said Vatican cardinal Gianfranco Ravasi today. 

Ravasi pointed to short, yet impactful Tweets such as "Love one another."

The Vatican has followed this example and embraced Twitter with Pope Francis (English language version) gathering over 3 million followers. 

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