Our Mission
We inspire and equip people to flourish in the third third of life, living with purpose and joy as they contribute to the flourishing of others.
The Third Third Institute is a Christian nonprofit organization that inspires and equips people to flourish in the third third of life, living with purpose and joy as they contribute to the flourishing of others. The work of the Institute, including resources, teaching, gatherings, and coaching, is grounded in the wisdom of Scripture and informed by the insights of science. The Institute works in partnership with individual churches, denominations, seminaries, senior living communities, and other organizations committed to the flourishing of older adults.
Our People
Institute Staff
Mark D. Roberts, MA, PhD
Founder and Executive Director of Third Third Institute
Pastor, professor, author, devotional writer
Nathan D. Roberts, MA, PhD
Associate Director of Third Third Institute
College Professor, filmmaker, author
Board of Directors
Tod Bolsinger, MDiv, PhD
Principal, AE Sloan Leadership
Pastor, Professor, Consultant
Author of several books, including
Canoeing the Mountains
Hilda R. Davis, PhD, MTS
Founder, Flourishing in Transition
Minister, Educator, Writer, Counselor
Author: Live Healthy and Be Well
David Chau Ming Cheng, MD
Faculty Emeritus Kaiser Permanente Orange County Family Medicine Residency Program
Adjunct Clinical Professor UC-Irvine and UC-Riverside, Department of Family Medicine
Medical Director of LivingWell Pregnancy Center
Steven R. Norris, MAI, CRE
Principal, Norris Realty Advisors
Commercial real estate valuation and consulting professional
Instructor, UCLA School of Management
Serendipity Zapanta Rinonos, MD, PhD
Neuro-Oncologist/Scientist, Asst. Professor Univ. of Florida, College of Medicine
Principal Investigator of the Serendipity Laboratory
Robert L. Toms, Jr., JD
Attorney, Pasadena, CA
Business and Corporate Law
Advisor to nonprofit organizations
Board of Advisors
Julie Chung, MA, DMin
Vice-President Operations
Union Rescue Mission, Los Angeles
Amy Hanson, MA, PhD
Lecturer, Gerontology, Univ. Nebraska Omaha
Author, Baby Boomers and Beyond