"The only positive advance which liberal economics has made is the elaboration of the laws of private property. These are contained in it, at any rate, although not yet fully elaborated and clearly expressed. It follows that on all points where it is a question of deciding which is the shortest road to wealth – i. e., in all strictly economic controversies – the protagonists of free trade have right on their side. That is, needless to say, in controversies with the monopolists – not with the opponents of private property, for the English Socialists have long since proved both practically and theoretically that the latter are in a position to settle economic questions more correctly even from an economic point of view."
January 1, 1970
https://en.wikiquote.org/wiki/Economic_liberalism