One thing is to consider happiness and unhappiness on separate scales, rather than ends of the same scale. Someone who is poor can be both unhappy and happy si

One thing is to consider happiness and unhappiness on separate scales, rather than ends of the same scale. Someone who is poor can be both unhappy and happy simultaneously. Someone who is say, middle class, may be happy but not very unhappy. And someone who is filthy rich could be moderately happy and desperately unhappy at the same time.