Mediation offers no pre-fabricated answers; a redelegation of competence concerning contents and decisions to the people concerned takes place (except in the environmental mediation, there always the authorities ultimately decide - see Zilleßen). Its dialectical self-logic can be contradictory: indeed, it is obliged to the paradox of solution-constitutive clarification of difference and dissent. To make visible opposites, to sustain and manage them - similar to Fisher's negotiation dilemma “cooperation despite competition” – is indispensable in the mediation process and basic requirement for a synthesis by compromise or consensus in the form of a "win-win" relationship in which each party achieves benefits from the contradictions. The rule is: If there are two conflicting statements (positions) depending on each other, both can be true.