Connected to no territory, owning nothing, embodied in nothing stable, they could formulate no concrete idea of permanence; they were unconcerned with survival and did not recognize themselves in their descendants; they did not fear death and did not seek heirs; children were a burden and not of great value for them; the proof is that infanticide has always been frequent in nomadic peoples; and many newborns who are not massacred die for lack of hygiene in a climate of total indifference.