What did Henri Matisse mean when he exhorted his students to “remember that a foot is a bridge”? Did he mean that reality—particularly as mediated by the artistic process—consists of a web of infinite associations and analogies; that things are in constant flux, transgressing the boundaries that define their apparently separate identities; that extremely subtle correspondences link apparently distant pieces of the world? In short, he meant all of these things, for nothing is stable, no meanings are fixed; everything moves as if it were fleeing its own identity. And therefore a foot can be a