homoiconic

http://en.wikipedia.org/wiki/Homoiconicity

“In computer programming, homoiconicity is a property of some programming languages, in which the primary representation of programs is also a data structure in a primitive type of the language itself, from the Greek words homo meaning the same and icon meaning representation. This makes metaprogramming easier than in a language without this property.”

Code is data.

Data is code.

Code is data is code.

Homoiconic Languages , true blue, 2007-04-19, (but it completely misinterprets the nature of {} and lists)

"If a program can't rewrite its own code, what good is it?" -- Mel Kaye , the archetypal Real Programmer .