Seniors gather outside Alexander Hall before processing past family and friends on Cannon Green and into the University Chapel.

Photo: Princeton University, Office of Communications, Denise Applewhite (2014)

Colorful kites lead the procession into the chapel on a sunny afternoon.

Photo: Princeton University, Office of Communications, Denise Applewhite (2014)

University President Christopher L. Eisgruber, left, and Baccalaureate speaker Christopher Lu follow mace-bearer Jeff Nunokawa in the procession.

Photo: Princeton University, Office of Communications, Denise Applewhite (2014)

The afternoon sun filters through the chapel's stained glass windows as the seniors file in for the service.

Photo: Princeton University, Office of Communications, Denise Applewhite (2014)

Baccalaureate, one of the University's oldest traditions, is followed by Class Day and Commencement.

Photo: Princeton University, Office of Communications, Denise Applewhite (2014)

Senior Jihad Al-Jabban reads from the Quran. Students who lead the service are chosen for their contribution to religious life at the University.

Photo: Princeton University, Office of Communications, Denise Applewhite (2014)

Senior Isabel Kasdin reads from the Bible during the interfaith service. Students who lead the service are chosen for their contribution to religious life at the University.

Photo: Princeton University, Office of Communications, Denise Applewhite (2014)

Eisgruber said Lu "has followed a distinguished and admirable path in his professional and personal lives."

Photo: Princeton University, Office of Communications, Denise Applewhite (2014)

Christopher Lu, deputy secretary of the U.S. Department of Labor and a member of Princeton's Class of 1988, speaks to seniors from the pulpit of the University Chapel during the Baccalaureate service on Sunday, June 1. Lu urged students to embrace public service, regardless of their career path.

Photo: Princeton University, Office of Communications, Denise Applewhite (2014)

The earliest recorded Baccalaureate address was given in 1760 by University President Samuel Davies.

Photo: Princeton University, Office of Communications, Denise Applewhite (2014)