Functional Programming Differences
baguasquirrel: "stay little, grow big" is probably one of the less-appreciated points there and I'm exuberant that you noted it.  It's also something that they likely won't encounter until they've actually tried writing something more open-ended in a functional language, like a full-blown program of any sort.  It's like telling people to use MVC for a GUI.  Important to mention it, but it's going to take some experience before it's down pat.