Raimond Gaita has published widely to academic and non- academic audiences. In 2009, the University of Antwerp awarded Gaita the degree of Doctor Honoris Causa ‘for his exceptional contribution to contemporary moral philosophy and for his singular contribution to the role of the intellectual in today’s academic world’.

Dr Anne Summers AO is a best-selling author, journalist and thought-leader with a long career in politics, the media, business and the non-government sector in Australia, Europe and the United States. She is author of nine books, including the classic Damned Whores and God's Police, Ducks on the Pond, The Lost Mother, and The Misogyny Factor.

Gregory Phillips is from the Waanyi and Jaru peoples, and comes from Cloncurry and Mount Isa. He is a medical anthropologist, with twenty-five years’ experience in leading change.

Gregory is Chief Executive Officer of ABSTARR Consulting, is an Associate Professor of Aboriginal Health, and serves on several boards and committees, including chairing the Cathy Freeman Foundation and AHPRA and the Australian Medical Council’s Indigenous health strategy groups.

Alan is a research fellow at Swinburne University, creating model universes within supercomputers to study the growth of galaxies, from the Big Bang to the present day. As well as learning how galaxies form, these simulations let him uncover the nature of the invisible Universe; made up of Dark Matter and Dark Energy. He then tries to explain these discoveries and more on TV with ABC Breakfast News and Ten's The Project as well as live to all ages from year 2 primary school classes all the way to general audiences.

Mark Colvin is an Australian journalist, filmmaker and broadcaster. He has been the presenter of PM, one of the flagship Australian radio current affairs programs on the ABC Radio network, since 1997.