Rules of Acquisition
: Once you have their money, never give it back.
: Never place friendship above profit.
: A wise man can hear profit in the wind.
: It never hurts to suck up to the boss.
: The bigger the smile, the sharper the knife.
: Good customers are as rare as latinum. Treasure them.
: Free advice is seldom cheap.
: The riskier the road, the greater the profit.
: No good deed ever goes unpunished.
I don't currently have all the rules compiled but here are some resources.
Ira Steven Behr (who is a genius and fantastic man, in my opinion) authored the book, The Ferengi Rules of Acquisition, which has all the canon rules, i.e. the rules actually heard on the show, of which there are only about seventy.
Another good book to check out about the rules, and also their applications, is Legends of the Ferengi, by Behr and friends.