The great yoga master, Bhaktivinode Thakur, once stated, "Party spirit is the greatest enemy of mankind." Our loyalties, our love, our sense of duty are all in connection with those of "our team". You see everyone within the team as your brothers or your relatives therefore you don't hate them. The best team, however, is the team which includes everyone, all living beings, where you don't feel that anyone is outside your team. This is true brotherhood.