The book contains a thorough analysis of the preaching heritage of Metropolitan Andrey Sheptytsky from the point of view of its compliance (or non-compliance) with the methodological principle, which is now called "positive-sum" or "win-win". The Metropolitan derived the genesis of this way of thinking from theology, and the author finds examples of its application by the Metropolitan himself in the messages of Andrei Sheptytsky in the field of economic relations, national relations, state building, inter-confessional and inter-religious relations. The author supplemented this scientific research with his own vision of what role the positive-sum principle and the formula of Metropolitan Andrey can play in the near future of Ukraine and the world.