Membership (the state of being members) in the nation is neither entirely voluntary (you cannot instantly acquire a culture), nor hereditary (children of members may be considered foreigners if they grew up in another culture).
作為民族一員之身份既非自願（文化無法傾刻而得），亦非遺傳（民族成員之子弟若成長於其他的文化中，會被視為外族）。