The statement that Chief Joseph made which shows he believed the promises that the Americans made to his people is: "what he (General Howard) told me before, i have it in my heart". That means that the promises made by the American general and the American politicians regarding the people of Nez Perce and his territory, later unfulfilled, became a pity that he carried in his heart until his death, for having believed in them when they were promised.
some researchers have suggested that young children and infants may be more blindly altruistic than older children and adults, because they don’t yet possess the ability to be discerning.