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.
capital cannot be more beneficially employed, then in strengthening and aiding the productive powers of nature.
No human being has the faculty of originally creating matter, which is more than nature itself can do. But any one may avail himself of the agents offered him by nature, to invest matter with utility.
regulation is useful and proper, when aimed at the prevention of fraud or contrivance, manifestly injurious to other kinds of production, or to the public safety, and not at prescribing the nature of the products and the methods of fabrication.