Human egoism increases every generation. But we cannot fight it directly and force people to love one another. We cannot force love. That is why we have to utilize the power of society over individuals. Each and every one of us is greatly affected by society: each of us wants respect from society; each of us is influenced by the opinions of society. If we can make it so that the most appreciated thing in the world will be giving-more appreciated than any other act of man, then people will want to give, they will want to bestow and to share, because they will want the respect of society.
Courtesy of http://www.youtube.com/watch?v=lRcQZ2tnWeg