This is an edited excerpt from remarks that Sam Harris made in a debate with a Christian apologist at Notre Dame University in 2011. The full debate can be viewed here: https://www.youtube.com/watch?v=yqaHXKLRKzg

Making Sense with Sam Harris

How to talk to a Christian

Join neuroscientist, philosopher, and five-time New York Times best-selling author Sam Harris as he explores important and controversial questions about the mind, society, current events, moral philosophy, religion, and rationality—with an overarching focus on how a growing understanding of ourselves and the world is changing our sense of how we should live. 
Sam is also the creator of the Waking Up app. Combining Sam’s decades of mindfulness practice, profound wisdom from varied philosophical and contemplative traditions, and a commitment to a secular, scientific worldview, Waking Up is a resource for anyone interested in living a more examined, fulfilling life...