VATICAN CITY -- Theologians must explore and debate disputed questions, at times even taking "risks" with what they propose, but those discussions should take place within the academy so as not to confuse the faithful, Pope Francis said.

ABOARD THE PAPAL FLIGHT FROM JAPAN -- Questions about Vatican finances, especially those involving a real estate deal in London, are serious, but they also are a sign that reforms begun by Pope Benedict XVI are working, Pope Francis said.

TOKYO -- Pope Francis spent his last morning in Japan at the Jesuit-run Sophia University, celebrating Mass with his Jesuit confreres, visiting aged members of the Jesuit community and addressing students and staff.

TOKYO -- Beauty, creation and each human life are gifts of God to be treasured and shared, not enslaved to current societal ideas of what is valuable, perfect or productive, Pope Francis said at a Mass in the famous Tokyo Dome.

HIROSHIMA, Japan -- Saying it is "perverse" to think the threat of nuclear weapons makes the world safer, Pope Francis urged a renewed commitment to disarmament and to the international treaties designed to limit or eliminate nuclear weapons.

NAGASAKI, Japan -- While the world knows Nagasaki as the site of a U.S. atomic bomb blast, for the Catholic Church it is also the site of one of the fiercest campaigns of anti-Christian persecution.

TOKYO -- Describing himself as a "missionary pilgrim," Pope Francis finally fulfilled a more than five-decade-old desire to share the Gospel in Japan.

BANGKOK -- Meeting Thai religious leaders and then celebrating Mass with Catholic young adults, Pope Francis encouraged them to strengthen a culture that treasures the past, holds fast to faith, is unafraid of differences and always seeks a way to promote dialogue and cooperation.

THA KHAM, Thailand -- In a large, predominantly Catholic village outside Bangkok, tens of thousands of people lined the roads and filled the grounds of a church complex to greet Pope Francis.