We’re continuing our series through several of this year’s notable Commencement speeches. Last week, we looked at Stephen Colbert’s address to Wake Forest University, and we heard from Ian McEwan, on the gift of free speech. Today, we listen to Katie Couric, who delivered an address at the University of Wisconsin-Madison. Couric’s life story includes highs and lows — an illustrious career in journalism as well as her family’s encounter with cancer. Considering her experience at work and home, it’s interesting to see how her speech begins and ends.