Six decades ago, as Mao's Communists seized power, the question in Washington was, 'Who lost China?' Now, as his capitalist descendants stand astride the world stage and Washington worries about decline, it seems to be, 'Who lost America?'

If half-black Barack Obama had decided years ago to call himself white - which his genes certainly entitled him to do - his story would have carried very different meaning. If millions of part-black people had followed him into whiteness, then the N.A.A.C.P. would be in true crisis.

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.

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

Today's multiracial Americans are at greater liberty to choose how they'd like to be seen, and under less pressure to pass for white.

Six decades ago, as Mao's Communists seized power, the question in Washington was, 'Who lost China?' Now, as his capitalist descendants stand astride the world stage and Washington worries about decline, it seems to be, 'Who lost America?'

What does purpose mean? It means the deepest desire for our short lives to mean something. . . . To speak a language of purpose is to return to first principles and to be able to answer, in plain English, the plain questions of Why? Why should we chip in to help someone else? Why should we defer gratification? Why should we care about the long term? Why should we trust anyone who seems to be limiting our ability to do what we want?