I'm guessing [that definition of quote] came from Kernel, but it's brilliant.
Well, I didn't (consciously) take that from Kernel. It's just what fexprs do, right?
On the other hand, I sorta did take the definition of 'fn from Kernel's '$lambda. I peeked at the R-1RK in order to discover that it used 'list*, and the implementation was straightforward from there. The definition I have is probably exactly the same as the Kernel one.