Tim Cook added to Robert F. Kennedy Human Rights board of directors

Apple's chief executive has taken another public step in his philanthropic journey, joining the board of directors of Robert F. Kennedy Human Rights.

Cook becomes the 29th member of the board, which governs the operational aspects of the organization. Other members include entertainers Henry Belafonte and Martin Sheen, business leaders, and several members of the Kennedy family.

"Growing up, I was inspired by Robert Kennedy's infinite hope for humanity and his belief that people at their core are good, sharing universal goals for themselves and the world in which we live," Cook said in a release announcing the appointment. "Robert Kennedy spoke to our highest aspirations, calling Americans from all walks of life to fight for something better. He was and is a hero and role model to me, and I am honored to serve alongside Kerry and the rest of the board to advance his message of justice and equality."

Cook was honored by the group for his work as a human rights leader late least year, receiving the Ripple of Hope award during their annual gala.

"Tim knows the importance of advocating for and representing people who have not been heard," Kerry Kennedy — the group's director and Robert F. Kennedy's daughter — added. "He has integrity and does not shy away from challenging issues when he knows they are right and just. Tim is deeply committed to the social justice work that he is helping Robert F. Kennedy Human Rights accomplish."