 Gratitude is probably the most popular among the grounds adduced for patriotic duty. Echoing Socrates in Plato’s Crito (51c-51d), Maurizio Viroli writes: “… We have a moral obligation towards our country because we are indebted to it. We owe our country our life, our education, our language, and, in the most fortunate cases, our liberty. If we want to be moral persons, we must return what we have received, at least in part, by serving the common good” (Viroli 1995, 9).