It is a retarding element creating hatred and anger, and causing people to fight each other, and making them unsympathetic.
Swami VivekanandaIf the Lord wills, we shall make this Math a great centre of harmony. Our Lord is the visible embodiment of the harmony of all ideals. He will be established on earth if we keep alive that spirit of harmony here. We must see to it that people of all creeds and sects, from the Brahmana down to the Chandala, may come here and find their respective ideals manifested.
Swami VivekanandaThis intelligence itself is modified into what we call egoism, and this intelligence is the cause of all the powers in the body. It covers the whole ground, sub-consciousness, consciousness, and super-consciousness.
Swami VivekanandaScience, art, learning and metaphysical research all have their proper functions in life, but if you seek to blend them, you destroy their individual characteristics until, in time, you eliminate the spiritual, for instance, from the religious altogether.
Swami Vivekananda