Evangelization: Who Said This?

We often attribute the New Evangelization to Pope John Paul II. Here is a quote from another pope who spoke of the evangelization of the of the world. Do you know who he was?

We wish to remind the entire Church that its first duty is that of evangelization. Our Predecessor ….. presented the directions for this in his memorable document: animated by faith, nourished by the Word of God, and strengthened by the heavenly food of the Eucharist, one should study every way, seek every means “in season and out of season” (2 Tim 4:2), to spread the word, to proclaim the message, to announce that salvation which creates in the soul a restlessness to pursue truth and at the same time offers strength from above. If all the sons and daughters of the Church know how to be tireless missionaries of the Gospel, a new flowering of holiness and renewal would spring up in this world that thirsts for love and for truth.