The two scholars contended that human behavior is not consistent as laymen and professional psychologists views it. They argued that research shows that behavior is not consistent. This inconsistency according to them is consistent and therefore can be used to predict human behavior.
Mass production facilitates the efficient production of a large number of similar products
Racism is discrimination on the basis of race. It can be stopped by teaching children (and adults) that every human is same and every human is equal.