What is Christianity? A philosophy? A set of ideas? A path to spirituality? A rule of life? Is it even a political agenda? Christianity is none of these things, yet it includes and, indeed, gives energy to them all. Christianity is a way of life. It is rooted in the good news revealed by an event that rocked the world. And those who believe this good news and live by it experience deep and lasting change. This is Paul's message to the Corinthians - and to us today.