Social relations and order are often presented as dependant on the dominant culture and the system of values, drawing its sense from an individual culture. Everything is connected with the specificities of a culture and the value system of the dominant culture. The society, which is not an ethical and homogenous being, is instable and constantly destabilized by internal conflicts. In such an environment, culture is observed as a new ideology, cultural movements' affirmation occurs (insisting on authenticity and non-changeability of one's own culture), cultural fundamentalism (discourse to the existence of unbridgeable cultural obstacles amongst different cultures) and communalism (closure into ethnical forms of identity and advocating for mono-ethnic space). Culturologists observe culture as organic and closed units, which cannot be changed, abandoned or rejected. The text puts a special emphasis onto the main representative of the cultural theory of Samuel Huntington and its thesis of the clash of civilizations, on the occasion of twenty years since the publication of the book under the same title.