« … Migration is an important factor in the erosion of traditional boundaries between languages, cultures, ethnic groups, and Nations. Even those who do not migrate are affected by movements of people in or out of their communities, and by the resulting changes. Migration is not a single act of crossing a border, but rather a lifelong process that affects all aspects of the lives of those involve … ».


(extract of a UNESCO text about the concept of migrant/migration in international relations)