Apatheia (Greek: ἀπάθεια; from a- "without" and pathos "suffering" or "passion"), in Stoicism, refers to a state of mind in which one is not disturbed by the passions. It might better be translated by the word equanimity than the word indifference. The meaning of the word apatheia is quite different from that of the modern English apathy, which has a distinctly negative connotation that includes feelings of inertness, indifference, and impassiveness. According to the Stoics, apatheia was the quality that characterized the sage. Whereas Aristotle had claimed that virtue was to be found in the golden mean between an excess and a deficiency of emotion (metriopatheia), the Stoics thought that living virtuously provided freedom from the passions, resulting in apatheia. It meant eradicating the tendency to react emotionally or egotistically to external events, the things that cannot be controlled. For Stoics, it was the optimally rational response to the world, for things cannot be controlled if they are caused by the will of others or by Nature; only one's own will can be controlled. That did not mean a loss of feeling, or total disengagement from the world. The Stoic who performs correct (virtuous) judgments and actions as part of the world order experiences contentment (eudaimonia) and good feelings (eupatheia).Pain is slight if opinion has added nothing to it;... in thinking it slight, you will make it slight. Everything depends on opinion; ambition, luxury, greed, hark back to opinion. It is according to opinion that we suffer.... So let us also win the way to victory in all our struggles, – for the reward is... virtue, steadfastness of soul, and a peace that is won for all time. Followers of Epicurus were the main opponents of stoicism and apatheia. Instead of apatheia, they believed in a similar form of living which is ataraxia, a related concept in Epicureanism. Some Latin Stoic authors, such as Seneca the Younger use the term interchangeably with apatheia.