Sources of hubris can be found in many places, such as in an individual's ego. Ego is defined as an individual's sense of self-importance or self-esteem, and it can lead to feelings of superiority or pride that can be detrimental to one's relationships with others. When someone has an inflated sense of their own importance, they may act in a way that is arrogant or disrespectful towards others, which can lead to feelings of hubris.