If you saw the first episode of Cosmos: A Spacetime Odyssey, you’ll probably have been impressed with Neil deGrasse Tyson’s testimony about the impact of Carl Sagan on his life. This reminded me of a powerful “sermon” he “preached” at the Beyond Belief 2006 conference, which is the video embedded above. His account of being a physics major at a Liberal Arts school is powerful and very timely in our era when some students think the point of a university... Read more