As soon as I am obliged, from the instant when I am obliged to you, when I owe, when I owe it to you, owe it to myself to carry you, as soon as I speak to you and am responsible for you, or before you, there can no longer, essentially, be any world. No world can any longer support us, serve as mediation, as ground, as earth, as foundation or as alibi. Perhaps there is no longer anything but the abyssal altitude of a sky. I am alone in the world right where there is no longer any world. Or again: I am alone in the world as soon as I owe myself to you, as soon as you depend on me, as soon as I bear, and must assume, head to head or face to face, without third, mediator, or go-between, without earthly or worldly ground, the responsibility for which I must respond in front of you for you, and for which I must answer in front of you for you. I am alone with you, alone to you alone, we are alone: this declaration is also an engagement.