Needham residents were among 465 seniors who graduated from Colby College May 20, receiving a bachelor of arts degree at the outdoor commencement in Waterville, Maine.

As commencement speaker, former British prime minister Tony Blair urged members of the Class of 2012 to continue learning with humility, to maintain an open mind, and to serve others. "Never stop learning. Carry on. And have the humility always to know that you can learn more," he said.

"Successful people are not defined by a restless search for fame and fortune but by an insatiable desire to be better and an infinite curiosity as to how. They're perpetual voyagers on the journey of self-improvement."

Colby President William D. Adams handed a diploma to each of the graduates.

Lauren B. Harris of Needham, the daughter of Gilbert and Marjorie Harris, majored in biology and is a graduate of Needham High School.

Michael J. Verschoor-Kirss of Needham, the son of Rein Kirss and Carla Verschoor, majored in biology with a concentration in cell and molecular biology/biochemistry and chemistry and is a graduate of Needham High School.

Founded in 1813, Colby College is the 12th-oldest independent liberal arts college in the nation. The college enrolls 1,825 students.