Why can the question 'What are the criteria for a right life?' be considered the main question of philosophy? Because modern philosophy, recognizing naturalism and physicalism, in general possesses satisfactory answers to the other main eternal questions.
Who and what am I? What is life? Is life worth living? What compels me to live? What does it mean to live a 'right life'? How to lead and conclude life with dignity? What is the best that future generations can hope for?
For determining the criteria for a right life, it is necessary to first correctly define ideals of humanity and basic universal values, from which any ethical concept should push off.
Good is moral behavior that multiplies happiness and reduces suffering, while evil stands as the opposite. The power of good and the power of evil are the combination of social factors and causes that give rise to these behaviors.
