Brilliance Inside is a project for harmony and peace. We work with inmates and correctional officers in the US prison system to reduce conflict and increase communication and connection.

Brilliance Inside is working to transform prison from being strictly a container of violence to a creator of peace by growing resilient high-performance individuals contributing their purpose and a safer society on their release.

The first TEDx event organized and led by the inmates was held at Donovan Correctional Facility in 2017.





About Marriette

 After the wild success of TEDxDonovanCorrectional held at San Diego’s Donovan state prison, Mariette Fourmeaux du Sartel has transferred her passion for building resilient high-performing teams and authentic human-centered leadership – honed through two decades in corporate and start-ups – into the unlikely environment that is prison.  She founded Brilliance Inside, a nonprofit program to transform prison from being strictly a container of violence to a creator of rehabilitation and peace.

Prior to this, Mariette spent 17 years in business, developing cutting-edge technologies for world-scale problems, such as a cancer-detecting medical device in Paris, d.light’s solar lanterns for the rural poor without electricity in India and a new augmented reality technology at HP, Inc.  She also grew up intertwined in the creation and expansion of her family wine businesses, starting at the ripe age of 6.  Mariette is a true global citizen:  born in France, she’s lived on four continents and has explored some of the most remote corners of our world.  Finally, Mariette holds a double materials engineering and economics degree from Brown University and a Berkeley MBA.

The Advisory Council

  • Lucien Chan – Principal, Skoll Foundation

  • Annmarie Gray – Founder & CEO, Matters of Gray

  • Anubhav Jain – Founder and Principal, Bit Palette

  • Linda Layton – Director, Paradigm Management Services

  • Shannon Ward – CEO, OnTrack


Brilliance Inside transforms prison from being strictly a container of violence to a creator of rehabilitation and peace, empowering residents to be agents of positive change in their community.  We believe that sustainable positive human change starts by connecting to the brilliance we each have inside, building the resilience and emotional intelligence tools to shine that brilliance independent of outside circumstances, and, as we do so, shifting the culture of our homes and communities.


Recognizing that hurt people hurt people, the US prison system provides (1) a safe community by separating those who do harm until they have found healing and rehabilitation and (2) a safe rehabilitative space for the prison residents to heal the pains that led to their criminal activity.  Prison residents reintegrate society with the tools to contribute to society with respect, integrity, contribution and connection.