Crescent Moon Over the Rational: Philosophical Interpretations of Paul KleeWhy, and in what manner, did artist Paul Klee have such a significant impact on twentieth century thinkers? His art and his writing inspired leading philosophers to produce key texts in twentieth century aesthetics, texts that influenced subsequent art history and criticism. Heidegger, Adorno, Benjamin, Merleau Ponty, Lyotard, Sartre, Foucault, Blanchot, Derrida, and Marion are among the philosophers who have engaged with Klee's art and writings.