One of the most important things to ourselves is about the brotherhood. It is so hard to say If we never feel it. The power of brotherhood can defeats other bad things about the relation with other person. Those who had feel the spirit of the brotherhood will protect the relation till the death. Brotherhood can be in organization, can be in a group and what ever program made, the aim is only to get Allah's willing. Besides that, we are supposed to generate the brotherhood as soon we are can unity and be togather forever for Islam. The conclution is..

Life is sin90 = 1

Hate is cos90 = 0

but brotherhood is tan90 = infinity