Robert Webber writes in Who Gets to Narrate the World?:

I was traveling on a plane from San Francisco to Los Angeles a few years ago. I was sitting next to the window, reading a Christian book. The man next to me, obviously from the Eastern hemisphere, asked, "Are you a religious man?" "Well, yes," I said. "I am too," he responded. We began talking about religion. In the middle of the conversation I asked, "Can you give me a one-liner that captures the essence of your faith?" "Well, yes," he said. "We are all part of the problem, and we are all part of the solution."

We talked about his one-liner, a statement I felt was very helpful. After a while I said, "Would you like a one-liner that captures the Christian faith?"

"Sure," he responded.

"We are all part of the problem, but there is only one man who is the solution. His name is Jesus."