By Eric Hoover
Daryao S. Khatri noticed the young man, the one who walked in late. The professor did not know if he could solve basic math problems, or if he wanted to learn. Mr. Khatri knew just one thing: When he first looked at Marc’Quinn Davis, the young man looked away.
It was June 2007. Arriving at the University of the District of Columbia that morning, neither one was sure what the weeks ahead would bring. They were as different as odd and even, the physics professor from India and the black teenager from across town. Mr. Khatri had come to the university long before Mr. Davis was born. One breathed numbers, the other shrugged at them.