That work led to his being censured by the Vatican Congregation for the Doctrine of the Faith. In the notification, Cardinal Joseph Ratzinger (prefect of the Congregation) stated "It is consistent with Catholic doctrine to hold that the seeds of truth and goodness that exist in other religions are a certain participation in truths contained in the revelation of or in Jesus Christ. However, it is erroneous to hold that such elements of truth and goodness, or some of them, do not derive ultimately from the source-mediation of Jesus Christ."