Ferengi Rule of Acquisition 4

"A woman wearing clothes is like a man in the kitchen."

Source: The Ferengi Rules of Acquisition (DS9 novel)

Ferengi Rule of Acquisition 272

"Always inspect the merchandise before making a deal."

Source: Star Trek Online

Ferengi Rule of Acquisition 43

"Feed your greed, but not enough to choke it."

Source: The Buried Age (TNG novel)

Ferengi Rule of Acquisition 141

"Only fools pay retail."

Source: The Ferengi Rules of Acquisition (DS9 novel)

Ferengi Rule of Acquisition 54

"Rate divided by time equals profit. (Also known as The Velocity of Wealth.)"

Source: Raise the Dawn (Typhon Pact novel)

Ferengi Rule of Acquisition 188

"Not even dishonesty can tarnish the shine of profit."

Source: Star Trek Online

Ferengi Rule of Acquisition 88

"It ain't over 'til its over."

Source: Ferenginar: Satisfaction is Not Guaranteed (DS9 novella)

Ferengi Rule of Acquisition 266

"When in doubt, lie."

Source: The Ferengi Rules of Acquisition (DS9 reference book)

Ferengi Rule of Acquisition 44

"Never confuse wisdom with luck."

Source: The Ferengi Rules of Acquisition (DS9 novel)

Ferengi Rule of Acquisition 9

"Instinct, plus opportunity, equals profit."

Source: The Storyteller (DS9 episode)