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

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

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.

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

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.

Alas, how many have been persecuted for the wrong of having been right?

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.