Ask HN: Paradigmatic Programming Languages

What would you say are the languages that best represent their respective paradigms?

I ask this knowing full well that "programming paradigm" is a bit fuzzy (the classic list, according to Wikipedia, is "imperative, declarative, functional, object-oriented, logic and symbolic," but perhaps we can bend that a bit).

I'm hoping to find languages, even if not in common use, that really exemplify the main approaches to programming and software design.