14 We certainly do not deny that those who are spreading these strange opinions are making a praiseworthy effort to investigate this lofty Mystery and to set forth its inexhaustible riches and to make it more understandable to the men of today; rather, We acknowledge this and We approve of it. But We cannot approve the opinions that they set forth, and We have an obligation to warn you about the grave danger that these opinions involve for true faith.
Source: Mysterium Fidei (Vatican.va)