Agriculture is a trade with the purpose... to produce profit or to gain money. The higher this benefit in the long run, the more complete this purpos… - Albrecht Daniel Thaer

Every person who seeks to practise agriculture with the full success which it admits—and that is the natural aim of every one who engages in it—must possess energy, activity, reflection, perseverance, and a knowledge of all the kindred and accessory sciences.

I continued for some time longer to ramble with Strauss and other school-fellows, to visit coffee-houses and billiard-rooms, but had a great antipathy to other debaucheries. The company of comedians of Mr. Seiler came just now to , performing comedies and tragedies. This was a new life for me; I became acquainted with each individual of this company; they all were fond of me; the beautiful Madame Koch gave me lessons in dancing, and I suddenly deserted all my former companions, neglecting them to such a degree, that one Mackphail, considering my conduct as an insult to the whole school, sent me a challenge, which ended in ray wounding him in the hand. My father loved me dearly, but did not much inquire into my conduct; he allowed me a great deal of money, but owing to my attachment to Ferry, whose salary was but small, I provided him with money, and having myself an extravagant taste for dress, I was often in great difficulties to pay my bills, of which my father was ignorant, till my creditors became troublesome, and my good father immediately discharged them, after giving me some kind admonition.

The science of agriculture does not lay down any positive rules, but it develops the motives by which the best possible method of proceeding may be discovered and successfully pursued. In fact, the art executes some law given and received, but it is from science that law emanates.