American president, born 1961. From black hair to grey in a term of 8 years he brought change. A man that was rewarded with the Nobel peace prize. The first black president of the United States. He said some interesting things;
"If you're walking down the right path and you're willing to keep walking, eventually you'll make progress."
"Your voice can change the world."
"Money is not the answer but it makes difference."
"Don't just consume things, create things."
"Change will not come if we wait for some other person or some other time. We are the ones we've been waiting for. We are the change we seek."
"Our destiny is not written for us, but by us."
"Nothing in life that's worth anything is easy ."