Pope Paul VI was great in so many different ways.  I think  he was the greatest writer among the recent Popes. (I love Pope Benedict's homies; John Paul II was quite often devastatingly profound, which profundity is totally ignored by those who have turned  him a mere authoritarian no-sayer; but if one is looking for beautiful and spiritually rich writing, go to Paul VI. He was a profoundly sensitive man.  He had a sublime sense of the universality of the Church and at the same time a profound respect fot human cultere. His insight into the real principles of liturgical reform are ignorned by  both the  ecclesiological left and the ecclesiological right. He took seriously the Church's social teaching.