Greg Smith was on the fast track to college from a very early age. He was just a baby in diapers when he started correcting other people’s grammar. By 18 months, he could add and subtract. He knew the alphabet by the time he could walk. He graduated from high school at age 9, after completing grades 9 through 11 in just months. This is a 1999 interview Oprah did with the boy genius.
