Tim Keller, pastor of Redeemer Presbyterian Church in Manhattan, and one of the world's most articulate and thoughtful Christian communicators, here offers a helpful consideration of "hope." It's is all the more interesting given his audience and the occasional interweaving of his reflections on Buddhism. Keller is the author of The Reason for God: Belief in an Age of Skepticism among a number of other books.
The "Faith and Global Engagement" group at the University of Hong Kong offers a number of past lectures and presentations online which I will want to explore in the near future.