That's the beauty of Lisp: it's all very readable, because it's a real language, not a string-substitution preprocessor.

Yes, any idiot can write unreadable Lisp — but good Lisp is a work of art. The Art of the Metaobject Protocol should be required reading: it builds an entire object system, complete with classes and generic functions (multimethods), written in the language itself. It's a tour de force.