When you have anger, this inner anger is reflected back and the enemy appears outside. If you try to destroy your enemy with anger, the other side will also become angry, and the situation will escalate. Even if you destroy one enemy, there will be another enemy, and more and more enemies will arise. Instead of defeating outside enemies, you should look toward your own anger as the real enemy, the enemy that causes suffering. The real enemy is not outside but within your own mind. Even if you cannot eliminate your anger entirely, trying to see things this way will help you to disrupt it.
from the book Freeing the Heart and Mind - Part Three: Teachings of the Sakya Path
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