it's best not to leave anyone without a proper reason. betrayal is a reason. backstabbing is a reason. forcing to do things is another reason. understanding feelings and matureness in any relationship or friendship is efficient for a healthy relationship. pushing someone out of your life without a good reason isn't healthy at all, agreed.
Civilization arises from a surplus of produce which enables resources to be directed to both cultural and physical activity. They also needed a form of government to direct and control the organization necessary for this advancement of society. The end products were similar, even if different in detailed application.
