Passionately prejudiced people always turn out, under scrutiny, to be people who cannot get along on a footing of equality with anyone.
The modification of prejudice takes a long time, and occurs as the result of a thousand things that happen to the prejudiced person - things he sees and hears and reads, people he talks to, and places he visits. Any given reformer must be content to take a small and obscure place in a chain of cumulative pressures.