Self-Generation
An expression that evaluates to itself.

(let ((let '`(let ((let ',let))
               ,let)))
 `(let ((let ',let))
    ,let))

Credited to Mike McMahon, in the paper "Quasiquotation in Lisp" (http://citeseer.ist.psu.edu/bawden99quasiquotation.html) by Alan Bawden.

quine hack