Professor Hess says a major value of sustainable agriculture is making good use of what you have.

VOA: special.2009.04.14

"By suddenly having an actual mechanism to value these systems in dollars, it gives you a potentially very large new mechanism for countering the other financial and economic arguments."

VOA: special.2011.05.10

If your disposal of the money in question has been sensible, wise, or unselfish, it is in our power to give you bonds to the value of fifty thousand dollars.

VOA: special.2011.08.13

"The have sentimental value, you know. It's from my kids, when they were growing up.

VOA: standard.2009.10.07