The central theme of ethnic nationalists is that "nations are defined by a shared heritage, which usually includes a common language, a common faith, and a common ethnic ancestry".[2] It also includes ideas of a culture shared between members of the group, and with their ancestors; however, it is different from purely cultural definitions of "the nation" (which allow people to become members of a nation by cultural assimilation) and a purely linguistic definitions (which see "the nation" as all speakers of a specific language).