"If language exists it is because below the levels of identities and differences, there is a foundation provided by resemblances, repetitions, and natural criss-crossings. Resemblance, excluded from knowledge since the seventeenth century, still constitutes the outer edge of language: the ring surrounding the domain of that which can be analyzed, reduced to order and known. Discourse dissipates this murmur [of resemblance] but without it we could not speak." Michel Foucault, The Order of Things