Harvard philosophy professor Michael Sandel appeared on the Today Show this morning, and got four minutes to make the case for philosophy. If you're not familiar with him, Sandel is a very popular Harvard professor. Some 15,000 students have taken his courses over 30 years, and to get a feel for his teaching, you can watch his 30-minute lecture online. It's called Justice: A Journey into Moral Reasoning, and it's one of the very few open lectures that Harvard has put online. (A disappointment, I must say.) The lecture also otherwise appears in our collection of Free University Courses. Finally, I'd also encourage you to listen to the series of lectures that Sandel presented through the BBC. We featured them here before, and we're glad that Tamas, one of our readers, has reminded us of them.