This quote comes from the book “Dreams from My Father: A Story of Race and Inheritance” written by Barack Obama, indeed that Obama, but it is actually from a school friend. He wrote his memoirs back in 1995 and the audio book read by Obama himself was released in 2005. He even received a Grammy Award for Best Spoken Word Album in 2006 for it. There are some more interesting quotes available like “You ain’t my bitch, nigga”, listen to them here. This screams to become the next internet meme!
And here is the first remix: