Wow, this is surprisingly good.
http://www.amazon.com/Life-P-Barnum-Written-Himself/dp/02520...
http://www.gutenberg.org/dirs/etext05/hnfrd10.txt
"Business" in the sense of trading with the people is largely a matter of filling the wants of the people. If you make what they need, and sell it at a price which makes possession a help and not a hardship, then you will do business as long as there is business to do. People buy what helps them just as naturally as they drink water.
It's to business as Lisp is to programming languages.