Grace

From Gracious Christianity, quoted by Scot McKnight:

Christians currently account for almost one-third of the world’s people, two billion out of a global population of just over six billion. If the faith professed by those two billion Christians became even a little more gracious, the dynamics of the world community could be changed dramatically for the better.

In fact, God has for the most part chosen to change the world by layering small grace upon small grace, and living graciously as Christians allows us to assist in that work.