One day I stood outside a health care clinic in Rwanda as a volunteer pointed to a young girl with a deep machete scar that ran from behind her right ear across the back of her neck. We look at a scar like that—we reflect on the evil that human beings are capable of—and we are tempted to walk away from humanity altogether. But when that same child smiles at us, when that same child lets us know that she has survived and she has grown, then we have no choice. We have no choice but to go forward in the knowledge that it is within our power, and that the world requires of us—of every one of
...more
