Watch Barack Obama's speech on race

I am the son of a black man from Kenya and a white woman from Kansas. I was raised with the help of a white grandfather who survived a Depression to serve in Patton’s army during the second world war, and a white grandmother who worked on a bomber assembly line at Fort Leavenworth while he was overseas.

I’ve gone to some of the best schools in America and lived in one of the world’s poorest nations. I am married to a black American who carries within her the blood of slaves and slaveowners – an inheritance we pass on to our two precious daughters.

I have brothers, sisters, nieces, nephews, uncles and cousins, of every race and every hue, scattered across three continents, and for as long as I live I will never forget that in no other country on Earth is my story even possible.

It’s a story that hasn’t made me the most conventional candidate. But it is a story that has seared into my genetic makeup the idea that this nation is more than the sum of its parts – that out of many we are truly one.

It has only been in the last couple of weeks that the discussion of race in this campaign has taken a particularly divisive turn.

On one end of the spectrum we’ve heard the implication that my candidacy is somehow an exercise in affirmative action; that it’s based solely on the desire of wide-eyed liberals to purchase racial reconciliation on the cheap. On the other end we’ve heard my former pastor, Reverend Jeremiah Wright, use incendiary language to express views that have the potential not only to widen the racial divide, but views that denigrate both the greatness and the goodness of our nation; that rightly offend white and black alike.

I have already condemned, in unequivocal terms, the statements of Reverend Wright that have caused such controversy. For some, nagging questions remain. Did I know him to be an occasionally fierce critic of American domestic and foreign policy? Of course. Did I ever hear him make remarks that could be considered controversial while I sat in church? Yes. Did I strongly disagree with many of his political views? Absolutely – just as I’m sure many of you have heard remarks from your pastors, priests or rabbis with which you strongly disagreed.

Given my background, my politics and my professed values and ideals, there will no doubt be those for whom my statements of condemnation are not enough. Why associate myself with Reverend Wright in the first place, they may ask. Why not join another church? Like other predominantly black churches across the country, Trinity embodies the black community in its entirety – the doctor and the welfare mom, the model student and the former gang-banger. Like other black churches, Trinity’s services are full of raucous laughter and sometimes bawdy humour. They are full of dancing, clapping, screaming and shouting that may seem jarring to the untrained ear.

The church contains in full the kindness and cruelty, the fierce intelligence and the shocking ignorance, the struggles and successes, the love and, yes, the bitterness and bias that make up the black experience in America.

And this helps explain, perhaps, my relationship with Reverend Wright. I can no more disown him than I can disown the black community. I can no more disown him than I can my white grandmother – a woman who helped raise me, a woman who sacrificed again and again for me, a woman who loves me as much as she loves anything in this world, but a woman who once confessed her fear of black men who passed by her on the street and who on more than one occasion has uttered racial or ethnic stereotypes that made me cringe.

For the men and women of Reverend Wright’s generation, the memories of humiliation and doubt and fear (from the years of slavery and segregation) have not gone away; nor has the anger and the bitterness of those years.

That anger may not get expressed in public, in front of white coworkers or white friends. But it does find voice in the barbershop or around the kitchen table. At times that anger is exploited by politicians to gin up votes along racial lines or to make up for a politician’s own failings. And occasionally it finds voice in the church on Sunday morning, in the pulpit and in the pews.

In fact, a similar anger exists within segments of the white community. Most working and middle-class white Americans don’t feel that they have been particularly privileged by their race. Their experience is the immigrant experience – as far as they’re concerned no one’s handed them anything, they’ve built it from scratch.

So when they are told to bus their children to a school across town; when they hear that an African-American is getting an advantage in landing a good job or a spot in a good college because of an injustice that they themselves never committed; when they’re told that their fears about crime in urban neighbourhoods are somehow prejudiced, resentment builds over time. This is where we are right now. It’s a racial stalemate we’ve been stuck in for years.

But what we know – what we have seen – is that America can change. That is the true genius of this nation. What we have already achieved gives us hope – the audacity to hope – for what we can and must achieve tomorrow.

For we have a choice in this country. We can accept a politics that breeds division and conflict and cynicism. We can tackle race only as spectacle – as we did in the OJ trial – or in the wake of tragedy, as we did in the aftermath of Katrina – or as fodder for the nightly news.

That is one option. Or, at this moment, in this election, we can come together and say, “Not this time.”

This is an extract from a speech given by Barack Obama in Philadelphia last Tuesday

Times Recommends

• 'New York has lost its edge'
• Copenhagen will fail – and quite right too
• More than 17,000 new underwater species found