Beyond Good and Evil by Friedrich Nietzsche Chapter 9 Page 39

employ the same words for the same kind of internal experiences, we must in the end have experiences IN COMMON. On this account the people of one nation understand one another better than those belonging to different nations, even when they use the same language; or rather, when people have lived long together under similar conditions (of climate, soil, danger, requirement, toil) there ORIGINATES therefrom an entity that “understands itself” — namely, a nation. In all souls a like number of frequently recurring experiences have gained the upper hand over those occurring more rarely: about these matters people understand one another rapidly and always more rapidly — the history of language is the history of a process of abbreviation; on the basis of this quick comprehension people always unite closer and closer.