After writing about
Epicurus and his philosophy on the avoidance of physical and emotional pain and the seeking of pleasure as being the highest good, I've just finished writing about Seneca.
Seneca, disagreeing with the Epicureans, explained that by making pleasure an ideal it would mean that good resides in the
senses.
He and the Stoics felt that good resides in the
intellect because of it's ability to judge what is good or bad according to virtue and honor.
These two schools of thought exemplify some of the differences of opinion on this thread i.e. pain/pleasure concept versus the values/moral principles concept as guides for human behavior.