Name that speaker

The American church "is called to respond to the profound religious needs and aspirations of a society increasingly in danger of forgetting its spiritual roots and yielding to a purely materialistic and soulless vision of the world," ___________ said.

"Taking up this challenge, however, will require a realistic and comprehensive reading of the 'signs of the times,' in order to develop a persuasive presentation of ... the Christian message and its relevance to the building of a more just, humane and peaceful world."

___________ added: "An effective proclamation of the Gospel in contemporary Western society will need to confront directly the widespread spirit of agnosticism and relativism which has cast doubt on reason's ability to know the truth, which alone satisfies the human heart's restless quest for meaning."

Any guesses? Someone challenged me with this, so I'll pass on the favor. No Google allowed!