Here’s a great TED talk by Sam Harris. He is well known for his best selling books The End of Faith: Religion, Terror, and the Future of Reason and its follow-up Letter to a Christian Nation. But he has recently been researching the neuroscience of morality and ethics. Sam has a a degree in philosophy from Stanford and a Ph.D. in neuroscience from UCLA. He is the co-founder and CEO of Project Reason, a nonprofit devoted to spreading scientific knowledge and secular values in society.
Harris has a new book coming out in November – The Moral Landscape: How Science Can Determine Human Values. It should be fascinating.