Taken from Obama's books:

I CEASED TO ADVERISE MY MOTHER'S RACE AT THE AGE OF12 OR 13, when I began to suspect that by doing so I was ingratiating myself to whites

I FOUND A SOLACE IN NURSING A PERVASIVE SENSE OF GRIEVANCE AND ANIMOSITY AGAINST MY MOTHER'S RACE

The emotion between the races could never be pure..... the THE OTHER RACE (WHITE) WOULD ALWAYS REMAIN JUST THAT: MENACING, ALIEN AND APART

never emulate white men and brown men whose fates didn't speak to my own. IT WAS INTO MY FATHER'S IMAGE , THE BLACK MAN, THE SON OF AFRICA, THAT I'D PACKED ALL THE ATTRIBUTES I SOUGHT IN MYSELF

There were enough of us on campus to constitute a tribe, and when it came to hanging out many of us chose to function like a tribe, staying close together, traveling in packs," he wrote. "It remained necessary to prove which side you were on, TO SHOW YOUR LOYALTY TO THE BLACK MASSES, TO STRIKE OUT, and name names

I had grown accustomed, everywhere, to SUSPICIONS BETWEEN THE RACES..

In Indonesia, I had spent two years at a Muslim school"