MATTHEW J. LEE/GLOBE STAFF

Benoit Rolland sees his bows as “living entities.”

TSAR FEDORSKY/HOME FRONT COMMUNICATIONS

Harvard’s Raj Chetty finds a human impact in his public policy work.

SUZANNE KREITER/GLOBE STAFF

Dr. Benjamin Warf will use his award to do more research in Africa.

TSAR FEDORSKY/HOME FRONT COMMUNICATIONS

Junot Diaz draws inspiration from the lives and history of Hispanics.