SHOT:

that meaning of the sacred dogmas is ever to be maintained which has once been declared by Holy mother Church, and there must never be any abandonment of this sense under the pretext or in the name of a more profound understanding.

—Dogmatic Constitution on the Catholic Faith, Vatican Council I

If anyone says that it is possible that at some time, given the advancement of knowledge, a sense may be assigned to the dogmas propounded by the Church which is different from that which the Church has understood and understands: let him be anathema.

—Dogmatic Canons, Vatican Council I

CHASER:

The way of understanding the faith today, after Vatican II, is different than the way of understanding the faith before Vatican II, because there was a development of understanding.

—Pope Francis, Public Address to the International Union of Superiors General

I have clearly stated that the death penalty is unacceptable, it is immoral. 50 years ago? No… but there has been a better understanding of morality.

—Pope Francis, Public Address to the International Union of Superiors General

• Pope Francis
• Vatican I