Ashraqat Dawood

“A hunter-gatherer mother who is shifting camp can carry only one child, along with her few possessions. She cannot afford to bear her next child until the previous toddler can walk fast enough to keep up with the tribe and not hold it back. In practice, nomadic hunter-gatherers space their children about four years apart by means of lactational amenorrhea, sexual abstinence, infanticide, and abortion. By contrast, sedentary people, unconstrained by problems of carrying young children on treks, can bear and raise as many children as they can feed. The birth interval for many farm peoples is around two years, half that of hunter-gatherers. That higher birthrate of food producers, together with their ability to feed more people per acre, lets them achieve much higher population densities than hunter-gatherers.”
― Jared Diamond, Guns, Germs, and Steel: The Fates of Human Societies

“tests of cognitive ability (like IQ tests) tend to measure cultural learning and not pure innate intelligence, whatever that is.”
― Jared Diamond, Guns, Germs, and Steel: The Fates of Human Societies

“Hunter-gatherer societies tend to be relatively egalitarian, to lack full-time bureaucrats and hereditary chiefs, and to have small-scale political organization at the level of the band or tribe. That’s because all able-bodied hunter-gatherers are obliged to devote much of their time to acquiring food.”
― Jared Diamond, Guns, Germs, and Steel: The Fates of Human Societies

“يا ويحَ روحي من روحي فوا أسفي عليَّ منّي فإنّي اصل بلوائـــي”
― الحلاج, ديوان الحلاج