Our country doesn’t depend on the heroism of every citizen. But all of us should be worthy of the sacrifices made on our behalf. We have to love our freedom, not just for the private opportunities it provides, but for the goodness it makes possible. We have to love it as much, even if not as heroically, as the brave Americans who defend us at the risk and often the cost of their lives. We must love it enough to argue about it, and to serve it, in whatever way our abilities permit and our conscience requires, whether it calls us to arms or to altruism or to politics.