Sanders of the River by Edgar Wallace

You who do not understand how out of good evil may arise must take your spade to some virgin grassland, untouched--by the hand of man from the beginning of time.

Here is soft, sweet grass, and never a sign of nettle, or rank, evil weed. It is as God made it. Turn the soil with your spade, intent on improving His handiwork, and next season--weeds, nettles, lank creeping things, and coarse-leafed vegetation cover the ground.