Changing ideas is a strain not to be lightly incurred, particularly when these ideas are intimately related to one's self-esteem ... men have elaborated an explanation for their situation in life... Their rationales are endowed with moral qualities.

An ideology can be defined as a group of beliefs that individuals borrow; most people borrow an ideology by identifying with a social group ... with a body of sacred documents and heroes.

Stereotypes are the mind's shorthand for dealing with complexities. They have two aspects: they are much blunter than reality; they are shaped to fit a man's preferences or prejudgments. Thus two principles are involved: differentiation or its lack, and biased preferential perception.

Changing ideas is a strain not to be lightly incurred, particularly when these ideas are intimately related to one's self-esteem ... men have elaborated an explanation for their situation in life... Their rationales are endowed with moral qualities.