and all the while the owner of the equipment is some person who has contributed no more than his per-capita quota to this state of the industrial arts out of which his earnings arise. Indeed the chances are that the owner has contributed less than his per-capita quota, if anything, to that common fund of knowledge on the product of which he draws by virtue of his ownership, because he is likely to be fully occupied with other things, — such things as lucrative business transactions, e. g., or the decent consumption of superfluities.

The Vested Interests and the Common Man (1919)