> Lisp traditionally has these features Lisp has traditionally a two stage syntax 1) S-expressions 2) Lisp S-Expression level has a syntax to describe data:

> Lisp traditionally has these features Lisp has traditionally a two stage syntax 1) S-expressions 2) Lisp S-Expression level has a syntax to describe data: lists, conses, numbers, symbols, strings, arrays, ... Lisp syntax is defined on top of that, as s-expressions: variables, function calls, macro calls, special forms (using quote, let, if, progn, setq, catch, throw, labels, flet, declare, ...), lambda expressions. Each macro also can implement syntax.