"You should not cause hurt even by a word, a look or a gesture. Tolerance, fortitude, equanimity - these help you to be steady in ahimsa (absence of violence)."

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Non-injuring has to be attained by him who would be free. No one is more powerful than he who has attained perfect non-injuring. No one could fight, no one could quarrel, in his presence. Yes, his very presence, and nothing else, means peace, means love wherever he may be. Nobody could be angry or fight in his presence. Even the animals, ferocious animals, would be peaceful before him.

— Swami Vivekananda