The concept of nullification is a "legal theory that a state has the right to nullify, or invalidate, any federal law which that state has deemed unconstitutional with respect to the United States Constitution (as opposed to the state's own constitution)."
They were nomadic, They followed the herd, they moved seasonally based on the water flow and their lifestock, They didnt have animal/plant domestication so they had to depend on their lifestock for transportation, thus the utility or camel and horseback, women had more freedom/ rights and roles, their food wasnt made to feed the whole population ( it could only support a small population)
Self esteem is how you good you feel about yourself, no matter what others think.
Secularism...i dont know if that was what you were looking for but i hope it helps...
