Quark : "Let me tell you something about hewmons, nephew. They're a wonderful, friendly people, as long as their bellies are full and their holosuites are working. But take away their creature comforts, deprive them of food, sleep, sonic showers, put their lives in jeapoardy over an extended period of time, and those same friendly, intelligent, wonderful people will become as nasty and violent as the most bloodthirsty Klingon."DS9 : The Siege of AR-558
Nog : "I feel sorry for the Jem'Hadar."