There are 285 rules of Acquisition – from Season 2, Episode 7 of DS9.
1. Once you have their money, you never give it back. – from Season 1, Episode 10 of DS9.
7. Keep your ears open. – from Season 1, Episode 19 of DS9.
9. Opportunity + Instinct = Profit. – from Season 1, Episode 13 of DS9.
16. A deal is a deal. – from Season 2, Episode 6 of DS9.
21. Never place friendship above profit. – from Season 2, Episode 7 of DS9.
22. A wise man can hear profit in the wind. – from Season 2, episode 7 of DS9.
31. Never make fun of a Ferengi’s mother. – from Season 2, Episode 3 of DS9.
33. It never hurts to suck up to the boss. – from Season 2, Episode 7 of DS9.
48. The bigger the smile, the sharper the knife. – from Season 2, Episode 7 of DS9.
59. Free advice is seldom cheap. – from Season 2, Episode 7 of DS9.
62. The riskier the road, the greater the profit. – from Season 2, Episode 7 of DS9.
76. Every once in a while, declare peace. It confuses the hell out of your enemies. – from Season 2, Episode 1 of DS9.
103: Sleep can interfere with [something] – from Season 2, Episode 7 of DS9.
139: Wives serve, brothers inherit. – from Season 2, Episode 8 of DS9.