Full Idea
I am entitled to buy any litre of water, but I am not entitled to buy every litre of water.
Gist of Idea
I can buy any litre of water, but not every litre of water
Source
Roy Sorensen (Vagueness and Contradiction [2001], 6.3)
Book Reference
Sorensen,Roy: 'Vagueness and Contradiction' [OUP 2004], p.100
A Reaction
A decent social system must somehow draw a line between buying up all the water and buying up all the paintings of Vermeer. Even the latter seems wicked, but it is hard to pin down the reason.