"For here the relationship of a yes to the Other, of a yes to the Other, and of a yes to the other yes, must be such that the contamination of the two yeses remains fatal. And not only as a threat: but also as an opportunity . . . We cannot say yes without promising to confirm it and to remember it, keep custody of it, countersigned in another yes, without promise and memory, without the promise for memory" (UG 68).