Theologians must explore and "venture" out further to help enrich doctrine while catechists must stick to established, "solid" doctrine, never anything new, Pope Francis told theologians.
The centuries' old silver fir tree that had been destined to become the centerpiece Christmas decoration in St. Peter's Square will now live, perhaps to see another century.
As authorities in Turkey continued to investigate who was responsible for a deadly bombing in a busy shopping district in Istanbul, Pope Francis prayed for victims and the nation.
For there to be peace, people need to expand their horizons, engage in dialogue and work with each other in a way that sets aside selfishness and ambition, Pope Francis said.
The challenges and threats facing humanity and the planet can be confronted effectively if all people come together in "a spirit of solidarity," said Thomas Bach, president of the International Olympic Committee, in an appeal also supported by three Vatican dicasteries.
The struggle for justice and love for all people is not over, but the battle must be evangelical and never political, Pope Francis told a group of Catholics from El Salvador.
Young people in the United States are looking for a sense of community and a safe space in the church to express themselves freely, two representatives of Catholic youth told Pope Francis.
The Second Vatican Council was of great interest to the Orthodox world, Ecumenical Patriarch Bartholomew of Constantinople wrote in an article published in the Vatican newspaper.
In the seven years since the pope's landmark encyclical Laudato Si' was published, "the environmental crisis of our common home has worsened drastically," said Cardinal Michael Czerny.
Pope Francis reconfirmed the leadership of the Pontifical Commission for the Protection of Minors and expanded its membership from 17 to 20 people, naming 10 new members and reappointing 10 returning members.
Jesus never abandons, coerces or blackmails anyone when they stray, rather, he patiently waits and is "our greatest and most faithful friend," Pope Francis said.
Biological engineering, such as gene therapy for treating human disease, is making such swift advancements that the public's knowledge and understanding of what is happening and what ethical and legal guidelines are needed are lagging too far behind, said speakers at a Vatican conference.
One cannot love and worship the Eucharist without compassion for the poor and marginalized, Pope Francis said at a Mass concluding Italy's eucharistic congress.
Financial consultants, managers and experienced professionals can help remedy today's economic, environmental and social crises, and help create a more humane, just and fraternal world, Pope Francis said.