Even the richest country in the world has limited resources. If it gives tax cuts to the rich, it will have less to spend on repairing levees; if it deploys the National Guard and reserves to fight a hopeless war in Iraq, there will be fewer resources at home to cope with a domestic crisis.
即便是世界上最富裕的国家资源也同样有限。如果允许富人少纳税，国家修筑堤坝的资金就必然减少。如果动用国民警卫队和物资储备在伊拉克打一场毫无希望的战争，就必然占用处理国内危机时所能动用的资源。