The Uchiha clan descended from the elderof the two sons of theSage of the Six Paths. The elder brother inherited the Sage’s “eyes”, powerful chakra and spiritual abilities. When it came time for the Sage to choose a successor, he questioned the two on what course of action they would follow to bring order to the world. The elder believed thatpower was the way to bring peace, while the younger believedlove was the way. The Sage favoured the ideal of the younger brother, and therefore designated the younger as his successor, causing the elder to be filled with jealousy and hate. From this hate came what Tobi calls the Curse of Hatred (, Nikushimi no Noroi). From the younger son descended the Senju clan who would be the eternal rivals of the Uchiha.