The Guide for the Perplexed
Maimonides wrote on theodicy (the philosophical attempt to reconcile the existence of a God with the existence of evil). He took the premise that an omnipotent and good God exists. In "The Guide for the Perplexed", Maimonides writes that all the evil that exists within human beings stems from their individual attributes, while all good comes from a universally shared humanity (Guide 3:8). He says that there are people who are guided by higher purpose, and there are those who are guided by physicality and must strive to find the higher purpose with which to guide their actions.