i often heard or read people asked "why is there evil in the world?"; Why do we have so much injustices and killings against our own human kinds?
If we believed that all of life is just a learning experiment, then perhaps we could understand better why the need for evil and injustices. For what do we compare goodness, kindness and justice if they do not have an opposite counterpart? And humans is the only lifeform on earth who could choose which experience she would based her life on. For only humans have this freewill of 'choice'.
