The Ferengi are greedy, avaricious, ruthless, cowardly and completely unscrupulous. For centuries, the famous Ferengi Rules of Acquisition have been the guiding principles of the galaxy's most successful entrepreneurs.

This comprehensive list of 285 rules includes such gems as “Once you have their money, never give it back” (Rule #1) and “Never place friendship before profit” (Rule #21). Compiled by prolific DS9 series writer Ira Steven Behr, these are the guidelines that have taken many successful Ferengi to new frontiers — of profit.