Marylin Chandler McEntyre in her book Caring For Words in a Culture of Lies http://www.amazon.com/Caring-Culture-Marilyn-Chandler-McEntyre/dp/0802848648 says, “Words are entrusted to us as equipment for our life together, to help us survive, guide, and nourish one another. We need to take the metaphor of nourishment seriously in choosing what we “feed on” in our hearts, and in seeking to make our conversation with each other life-giving.”