Robert H. Jackson, United States v. Willow River Power Company…
“ But that a closed catalogue of abstract and absolute 'property rights' in water hovers over a given piece of shore land, good against all the world, is not in this day a permissible assumption. We cannot start the process of decision by calling such a claim as we have here a 'property right'; whether it is a property right is really the question to be answered. Such economic uses are rights only when they are legally protected interests. ”
