Chuck Swindoll has a close friend who spent a day at San Diego's SeaWorld. "While he and his wife were near the main mall, they saw something unusual in the distance: a bunch of ducks coming toward them … on roller skates! They could do it, my friend said, but as they got closer, he could tell that they didn't have their hearts in it.

"Some folks are ducks on roller skates; they can do what they do, but they don't have their hearts in it."

 - Dallas Seminary Daily Devotional, 9/15/03