If you believe that the universe just happened and there is no God, but that somehow human rights still exist, you can’t prove that. In fact, it takes a lot of faith to imagine humanistic values can arise from an impersonal universe. And that’s fine. That’s a set of beliefs, but they’re just that—beliefs. And I’ve found that first part of the book [Making Sense of God] gets a lot of horrible pushback from people who are absolutely sure that Christians have faith, but they believe the actual truth about the universe. —Tim Keller (from, One-on-One with Tim Keller about Reaching Skeptics with the Gospel)