Earth Quote by Karl Marx

Labour is the source of all wealth, the political economists assert. And it really is the source -- next to nature, which supplies it…

— Friedrich Engels

“The most important thing in industry is the person who does the industry, which is the worker…. Labor is the only source of wealth.…

— Eli Siegel

The wealth of society is its stock of productive labor.

— James Mackintosh

All wealth is the product of labor.

— John Locke

Labour is the human element which makes the fruitful seasons of the earth useful to men.

— Henry Ford

Because the earth is not a product of labour it cannot have a value.

— David Harvey

Labour is not a commodity.

— Sharan Burrow

The labour-power is a commodity , not capital, in the hands of the labourer, and it constitutes for him a revenue so long as…

— Karl Marx

Labor is the source of all wealth and all culture.

— Ferdinand Lassalle

It is labor alone that is productive: it creates wealth and therewith lays the outward foundations for the inward flowering of man.

— Ludwig von Mises

“The values of commodities are directly as the times of labour employed in their production, and are inversely as the productive powers of the…

— Karl Marx

Thus the labour of a manufacture adds, generally, to the value of the materials which he works upon, that of his own maintenance, and…

— Adam Smith