What motivates someone to get involved in human rights work? And what motivates them to keep going, decades later? What are some key learnings from their decades of work? The highs and the lows? The advice do they want to share?

We talk with three long-term human rights advocates about their stories: Aroha Reriti-Crofts (Maori and women's rights), David Matas (organ transplant abuse) and Marilyn Garson (social enterprises in developing countries).