Before he was elected pope, Benedict delivered a pivotal sermon calling for the Church to regain a common sense of what is truth, how to understand truth, and the real power of truth.
I have seen quite a bit of chatter about alternate facts being bandied about recently, but the issue goes deeper than partisan politics. This is one of the central, perhaps the central, artifact in Western thought that has become deeply fractured and has resulted in a host of societal and ecclesiastical confusion: what is Truth?
This is the sermon where Benedict coined a phrase: the dictatorship of relativism.
Worth reading, contemplating, and discussing, especially during this Week of Prayer for Christian Unity.
http://www.vatican.va/gpII/documents/homily-pro-eligendo-pontifice_20050418_en.html
Fr. Troy Beecham
