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When it is impossible for anger to arise within you, you find no outside enemies anywhere. An outside enemy exists only if there is anger inside.

Rinpoche Thubten Zopa (1994). “The Door to Satisfaction: The Heart Advice of a Tibetan Buddhist Master”, Wisdom Publications (MA)
When it is impossible for anger to arise within you, you find no outside enemies anywhere. An outside enemy exists only if there is anger inside.