The principle that a man has a right to the produce of his own labour is useless in an industrial civilization.
 Bertrand Russell, A History of Western Philosophy (1945). copy citation

Context

“As was natural in his day, he does not think of such cases, but only of agriculture. Peasant proprietorship, which he favours, is inapplicable to such things as large-scale mining, which require expensive apparatus and many workers. The principle that a man has a right to the produce of his own labour is useless in an industrial civilization. Suppose you are employed in one operation in the manufacture of Ford cars, how is any one to estimate what proportion of the total output is due to your labour? Or suppose you are employed by a railway company in the transport of goods, who can decide what share you shall be deemed to have in the production of the goods?” source