It's an excerpt from Prayers and Sayings of the Mad Farmer by Wendell Berry
"Beware of the machinery of longevity. When a man's life is over the decent thing is for him to die. The forest does not withhold itself from death. What it gives up it takes back."
Our culture has turned death into a thing to be avoided, which is crazy. Death, I believe, is unavoidable. Why leech endless resources to protract our one measly life?