Being ground his concept of freedom ontologically by distinguishing between being-in-itself and being-for-itself. Being is also understood as one's "state of being," and hence its common meaning is in the context of human (personal) experience, with aspects that involve expressions and manifestations coming from an innate "being", or personal character. Heidegger coined the term ""dasein"" for this property of being in his influential work "Being and Time" ("this entity which each of us is himself…we shall denote by the term 'dasein.'"), in which he argued that being or "dasein" links one's sense of one's body to one's perception of world. Heidegger,
Being work of such influential theorists as W. V. O. Quine, to name one of many. One of the most fundamental questions that continues to exercise philosophers is posed by William James: "How comes the world to be here at all instead of the nonentity which might be imagined in its place? ... from nothing to being there is no logical bridge." The deficit of such a bridge was first encountered in history by the Pre-Socratic philosophers during the process of evolving a classification of all beings (noun). Aristotle, who wrote after the Pre-Socratics, applies the term category (perhaps not originally)