This thing all things devours:Birds, beasts, trees, flowers;Gnaws iron, bites steel;Grinds hard ston

This thing all things devours:Birds, beasts, trees, flowers;Gnaws iron, bites …

This thing all things devours:Birds, beasts, trees, flowers;Gnaws iron, bites steel;Grinds hard stones to meal;Slays king, ruins town,And beats high mountain down.

J.R.R. Tolkien