One nice thing about being in a good department that rarely gets discussed is the quality of visitors. We're able to get a good stream of top-notch speakers for colloquia and seminars, and that is very important for maintaining an intellectually rich atmosphere for both the faculty and the students. On top of the usual calendar, we also have a couple of named, endowed lectureships. For example, every year we have a public lecture (followed the next day by a physics colloquium) in honor of William V. Houston (pronounced "how-ston"). The Houston lecturers are usually Nobel Laureates and their visits are very fun. This week we had George Smoot of cosmic microwave background fame, and once again I was reminded how much more we know about cosmology now than when I entered college.