At the Discovery Museum in Acton, MA, today:
How Learning Occurs: "Building a robot that works involves building a robot that doesn't work and then figuring out what is wrong with it." (Benjamin Erwin)
[As I like to do, I googled to find out who Erwin is. He has something to do with LEGO!]
On the road on the way there and back:
Whistles not blown. [Before a train crossing.]
Not a sign, but what Andrea said as we were trying to get the kids organized to leave the museum:
"We never get anywhere, and when we are somewhere, we never get back from there."