With a selfish attitude, oneself is important, and others are not so important. According to Shantidevas advice, a technique to help in turning this attitude around is to imagine- in front of yourself as an unbiased observer- your own selfish self on one side and a limited number of other beings on the other side- ten, fifty, or a hundred. On one side is your proud, selfish self, and on the other side is a group of poor, needy people. You are, in effect, in the middle- as an unbiased, third person. Now, judge. Is this one, single, selfish person more important? Or is the group of people more important? Think. Will you join this side or that side? Naturally, if you are a real human being, your heart will go with the group because the number is greater and they are more needy. The other one is just a single person, proud and stupid. Your feeling naturally goes with the group. By thinking in this way, selfishness gradually decreases, and respect of others grows. This is is the way to practice.
Tenzin Gyatso, XIV Dalai Lama.