I learned about Bill Clinton’s speech at Howard University from The Atlantic’s post, The Best Commencement Speeches of 2013, and it’s quite good.
I couldn’t find a written transcript, but here’s a good excerpt The Atlantic published:
But the most important thing is that we are all 99 and a half percent the same … The half a percent matters. It gave Einstein the biggest brain ever measured. He made pretty good use of it. It’s a good thing. That half a percent means LeBron James is hard to stop if he is driving for a basket. The half a percent matters. But so does the 99 and a half percent … And when you leave here I want you to never to forget for the rest of your life in the good times and bad that we live in an interdependent world and we’ve got to pull it together which means to be a good citizen you’ve got to something sometime for someone else because they are just like you are.
You can see what other commencement speeches over the year I’ve found worth watching here.