Nancy Sleeth wants all of us to think about becoming a little more Amish. And then she wants us to act.

Sleeth, who cofounded the creation-care organization Blessed Earth with her husband, Matthew, isn’t advocating that we sell the family car in order to buy a horse and buggy. Sleeth lives in a small urban townhome, drives a Prius, owns a computer and cell phone, and does her farming in a community garden plot.