Love of country cannot be a supersized version of individual narcissism. True love of country-of this country-is love of our children, of a creed that promises them a better life before it promises us anything, and embraces the sacrifices needed to make that better life. True love of country is giving ourselves to a cause and a purpose larger than ourselves. And that cause is to make liberty worth having, to make the pursuit of happiness deeper than the quest for personal pleasure, and to leave a legacy of progress and possibility.

At the heart of our public morality is the idea that he who gives generously is most virtuous and morally praiseworthy; that there is no greater citizen than she who sacrifices; and that there is no greater measure of worth than contribution. These are values we can be proud of. After all, there is no moral system or religion on earth where the guiding ethic is grab more for yourself.

Honest people know that the road to success and virtue always involves shared sacrifice, hard work, and gratification postponed. Telling people otherwise isn't leadership, it is pandering.

Today, public understanding of our past and our system of government is pitifully low.

From the right, you get demagogues shouting about brown-skinned anchor babies and clamoring to deport the undocumented. From the left, you get advocacy for the oppressed but otherwise, when it comes to national civic identity, mainly silence.

In the end no segregationist scheme has withstood the force of a simple idea: equality under law.

What we should celebrate more than diversity is what we do with it. How do we bring everyone in the tent and create something together? In a twenty-first century way that activates our true potential, we all need to become sworn-again.