Thus it is seldom that people live the law of reciprocity, although everyone is sure that he returns love for love and hate for hate. Perhaps he returns hate for hate, but whether he returns love for love is another question. The reason is that the first thing man thinks of is himself, what he feels, what he thinks, what he says, what he does; and it is only his second thought that he gives to what another person says, thinks, feels, or does. So that which one thinks, says, feels, or does stands clearly and fully before one, and all that another person feels, thinks, says, or does is something that one sees from a great distance. And when it is something which concerns himself, a person very often views it with only his own interest in mind.