The term "national idea" is an unclear one. One might think of it as a widely shared understanding among a people as to the desired way of life in their country, an idea that holds sway over the population. A unifying concept like that can be useful, but should never be created artificially or imposed top-down by the powers-that-be.
Aleksandr SolzhenitsynOn the way from the Renaissance to our days we have enriched our experience, but we have lost the concept of a Supreme Complete Entity which used to restrain our passions and our irresponsibility. We have placed too much hope in political and social reforms, only to find out that we were being deprived of our most precious possession: our spiritual life. In the East, it is destroyed by the dealings and machinations of the ruling party. In the West, commercial interests tend to suffocate it. This is the real crisis.
Aleksandr SolzhenitsynLet us not forget that violence does not live alone and is not capable of living alone: it is necessarily interwoven with falsehood. Between them lies the most intimate, the deepest of natural bonds. Violence finds its only refuge in falsehood, falsehood its only support in violence. Any man who has once acclaimed violence as his method must inexorably choose falsehood as his principle.
Aleksandr Solzhenitsyn