Being and Time of Heidegger's early career, but he produced other important works from this period: Although Heidegger did not complete the project outlined in "Being and Time", later works explicitly addressed the themes and concepts of "Being and Time". Most important among the works which do so are the following: "Being and Time" has been seen as a product of the crisis of German culture following Germany's defeat in World War I, and has been compared in this respect to works such as Ernst Bloch's "The Spirit of Utopia" (1918), Oswald Spengler's "The Decline of the West" (1918), Franz Rosenzweig's "The Star
Being in itself 'Being in itself' to be at the same time the most vague and general concept possible to contemplate, but also the topic of greatest interest to him as a philosopher. In Sartrean existentialism, being-in-itself ("être-en-soi") is also contrasted with the being of persons, which he describes as a combination of, or vacillation or tension between, being-for-itself ("être-pour-soi") and being-for-others ("I'être-pour-autrui"). Being-in-itself refers to objects in the external world — a mode of existence that simply is. It is not conscious so it is neither active nor passive and harbors no potentiality for transcendence. This mode of being is relevant to