1. Know partiality to be the chief cause of all evil. That is to say, if you show towards any one more love than towards somebody else, rest assured, you will be sowing the seeds of future troubles.
2. If anybody comes to you to speak ill of any of his brothers, refuse to listen to him in toto. It is a great sin... to listen even. In that lies the germ of future troubles.
- Swami Vivekananda
The Complete Works of Swami Vivekananda/Volume 6/Epistles - Second Series/LXXIII Brother Disciples