Historians have recorded that many religious defenders and revolutionaries put their ideas, faith, or principles even above their lives. Although in those cases the concept of self as an individual is usually surrendered to the concept of self as a group, the concept of self is, nevertheless, strengthened. But ideology can be changed, and a change in one 's ideology does not mean a change in the individual. The concept of self remains. Thus it can be proven that ideology is still not the core of the concept of self.
Reputation is also a strong identification of self.
Reputation represents one 's deeds, which distinguish one from other persons. Reputation can be planted very deeply in one 's mind. Ego is a term which represents a person 's strong attachment to his identification by reputation. Pride and arrogance are usually the by-products. Just like ideology, however, fame can change overnight.