Best known today for his work on everyday life, the city and the production of space, Lefebvre wrote on a wide range of topics. First published in 1965, "Metaphilosophy" is a foundational text for his work and contemporary thinking about philosophy's relation to the world. Lefebvre frequently said that Hegel, Marx and Nietzsche were the most important thinkers for his work, and Metaphilosophy discusses each in detail. But it also has some of his most important discussions of Heidegger, Sartre, and Axelos. Marx declared that the world s becoming philosophical is at the same time philosophy's becoming worldly, that its realization is at the same time its loss. Lefebvre takes this as a leitmotif, thinking about the relation of Hegel-Marxist supersession and Nietzschean overcoming to the future of philosophy."