This isn't the exact quote SallyJo referred. But these are interesting and show insight into the man's character.

"When people who don't know me well, black or white, discover my background (and it is usually a discovery, for I ceased to advertise my mother's race at the age of twelve or thirteen, when I began to suspect that by doing so I was ingratiating myself to whites), I see the split-second adjustments they have to make, the searching of my eyes for some telltale sign. They no longer know who I am. Privately, they guess at my troubled heart, I suppose - the mixed blood, the divided soul, the ghostly image of the tragic mulatto trapped between two worlds. And if I were to explain that no, the tragedy is not mine, or at least not mine alone, it is yours, sons and daughters of Plymouth Rock and Ellis Island, it is yours, children of Africa, it is the tragedy of both my wife's six-year-old cousin and his white first grade classmates, so that you need not guess at what troubles me, it's on the nightly news for all to see, and that if we could acknowledge at least that much then the tragic cycle begins to break down...well, I suspect that I sound incurably naive, wedded to lost hopes, like those Communists who peddle their newspapers on the fringes of various college towns. Or worse, I sound like I'm trying to hide from myself."


"To avoid being mistaken for a sellout, I chose my friends carefully. The more politically active black students. The foreign students. The Chicanos. The Marxist professors and structural feminists and punk-rock performance poets. We smoked cigarettes and wore leather jackets. At night, in the dorms, we discussed necolonialism, Franz Fanon, Eurocentrism, and patriarchy. When we ground out our cigarettes in the hallway carpet or set our stereos so loud that the walls began to shake, we were resisting bourgeois society's stifling constraints. We weren't indifferent or careless or insecure. We were alienated. But this strategy alone couldn't provide the distance I wanted, from Joyce or my past. After all, there were thousands of so-called campus radicals, most of them white and tenured and happily tolerated. No, it remained necessary to prove which side you were on, to show your loyalty to the black masses, to strike out and name names."

Obama, Barack. The Audacity of Hope. New York: Crown Publishers, 2006.

Obama, Barack. Dreams from My Father. New York: Crown Publishers, 2004.