Four things I’ve learned

Four things that I’ve learned in some three decades as a student and professor at Harvard University:

1. There are a lot of people at Harvard who are, like, really smart.
2. Not everyone at Harvard is, like, really smart.
3. The smart ones never say things like “I’m, like, really smart.”
4. Instead, it becomes known by virtue of their saying things that are, actually, really smart.