Chuck Palahniuk said this quote
“ - The first rule of Fight Club is: you don't talk about Fight Club. - The second rule of Fight Club is you don't talk about Fight Club- Third rule of Fight Club, if someone yells “stop!”, goes limp, or taps out, the fight is over- Fourth rule: only two guys to a fight- Fifth rule: one fight at a time- Sixth rule: the fights are bare knuckle. No shirt, no shoes, no weapons- Seventh rule: fights will go on as long as they have to- The eighth : if this is your first time at Fight Club, you have to fight ”