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Sectarianism, bigotry and its horrible descendant, fanaticism, have long possessed this beautiful Earth. They have filled the Earth with violence, drenched it often with human blood, destroyed civilizations and sent whole nations to despair. Had it not been for these horrible demons, human society would be far more advanced than it is now.
— Swami Vivekananda (1863-1902), disciple of Sri Ramakrisha