Sam Harris
American neuroscientist, philosopher, author and podcast host.

https://www.youtube.com/watch?v=8V50kUIW_HM

Ophelia Deroy
Professor of Philosophy of Mind at Ludwig Maximilian University of Munich and a member of the Graduate School in Systemic Neuroscience in Munich.

https://www.youtube.com/watch?v=0idcQXGvIRU

Willie Esterhuyse
Emeritus Professor of Philosophy at the University of Stellenbosch. He has also been associated with the Graduate School of Business of the Stellenbosch University as well as University of Cape Town where he taught business ethics. Esterhuyse was also a longtime columnist for the financial magazine, F & T Weekly, Die Burger, Beeld and Die Volksblad on ethical and socio-political issues.

https://www.youtube.com/watch?v=cM9FiPEgBVc

https://www.youtube.com/watch?v=6T8LMw-X3cc

Roger Penrose
British mathematician, mathematical physicist, philosopher of science and Nobel Laureate in Physics.

https://www.youtube.com/watch?v=YnXUuyfPK2A

Edward Snowden
American and naturalized Russian citizen who was a computer contractor who leaked classified information from the National Security Agency in 2013.  He is currently under indictment for espionage.

https://www.youtube.com/watch?v=52i2lv33BkU

https://www.youtube.com/watch?v=ZSu4rCizyUM

J. Wentzel van Huyssteen
Professor at Princeton Theological Seminary from 1992―2014 (demised). 

https://www.youtube.com/watch?v=EWOHPS7tdk4