To the labor of man alone Smith ascribes the power of producing values. This is an error. A more exact analysis demonstrates... that all the values are derived from the operation of labor, or rather from the industry of man, combined with the operation of those agents which nature and capital furnish him.

The property a man has in his own industry, is violated, whenever he is forbidden the free exercise of his faculties or talents, except insomuch as they would interfere with the rights of third parties.

I'il n'est pas en notre pouvoir de changer la nature des choses. Il faut les йtudier telles qu'elles sont.

To the labor of man alone Smith ascribes the power of producing values. This is an error. A more exact analysis demonstrates... that all the values are derived from the operation of labor, or rather from the industry of man, combined with the operation of those agents which nature and capital furnish him.

All those who, since Adam Smith, have turned their attention to Political Economy, agree that in reality we do not buy articles of consumption with money, the circulating medium with which we pay for them. We must in the first instance have bought this money itself by the sale of our produce.

Nothing can be more idle than the opposition of theory to practice!

The manner in which things exist and take place, constitutes what is called the nature of things; and a careful observation of the nature of things is the sole foundation of all truth.