“A redwood tree doesn’t take all of the soil’s nutrients; it just takes what it needs to grow. A lion doesn’t kill every gazelle, it just kills one. In fact, when the lion has fed, gazelles will go on grazing right in the lion’s midst. Why? Certainly, the lion could pounce again, but it doesn’t. Somehow, the lion naturally obeys this life-giving law of limits, a law that keeps nature in balance and keeps the delicate cycle upon which all of life depends intact.”