Peace is a virtue that requires the "active" commitment of individuals and entire societies, Pope Francis tweeted on Tuesday.
"Peace is an 'active virtue', one that calls for the engagement and cooperation of each individual and society as a whole," read his Tweet.
Several of pontiff's almost daily tweets this year have called for peace and non-violence, one of the major themes of his papacy
His nine-language @pontifex account has over 30 million followers.
