There is no art without theory. Art depends on theories, is accompanied by theories, and opposes theories in order to generate theories of its own. Art is a form of thinking, no matter in what medium it expresses itself. As graphic, painterly, sculptural, musical or performative thinking, art reflects on the means characteristic of it by means of these own means, in oder to discover its capacities and boundaries. Theory too – for example in the form of philosophy – is never free of artistic elements. It is concerned with the imagination, with inventions, with questions of form, with uncertainty. Art and theory belong together because art is always also theory and theory always also implies art. The complicity of art and theory can articulate itself as friendship, as antagonism and as experiment.