Sir John Wilson traveled 50 thousand miles a year on behalf of the International Agency for the Prevention of Blindness.  That's an organization that brings sight to over 100,000 people every year.

It's remarkable that Wilson himself was blind.

One year, he traveled to the village of Nakong in Northern Ghana where almost everyone is blind. Farmers taught him to plant grain by following a straight piece of bamboo.  Their wives went to the well by following a piece of rope.  Nelson discovered that these villagers were so accustomed to blindness they found it difficult to believe that the rest of the world could see.

Doesn't something like that happen to all of us?

It's easy to fall into a rut of a morality far below even our own standards; easy to lose ourselves in the dark -- and get the notion that no light exists.