奥巴马在美国空军学院2016年毕业典礼上的演讲
Take care of each other. Take care of those under your command. And as long as you keep strong that Long Blue Line, stay true to the values you’ve learned here — integrity, service before self, excellence — do this and I’m confident that we will always remain one nation, under God, indivisible, with liberty and justice for all.
