This thesis investigates the problematic of ”care of the self” in the later works of Michel Foucault. In these major works, Foucault studied how subjects are fabricated within relations of power and knowledge. ”Différance” is a term Derrida coined in 1968 in light of his researches into the structuralist theory of language. With Derrida, the theory of difference becomes the prototype of what remains outside the scope of Western metaphysical thought, and indicates the specification of meaning is an infinite and endless process. Furthermore, the concept of ”hospitality” is central to Derrida's urgent concern. A pact with hospitality probably opens a healing democratic space into our fractured world.