Do not let the behavior of others destroy your inner peace.
The real challenge here isn't ignoring rudeness—it's recognizing that you've already ceded your peace away the moment you *expect* others to behave better than they do. Most people read this as permission to stay detached, when what the Dalai Lama is actually suggesting is more active: that your inner peace is something you must protect deliberately, like tending a garden rather than building walls. Consider how a single critical email from your boss can occupy your thoughts for hours, or how a friend's thoughtless comment poisons an entire evening—these aren't moments when others "destroyed" your peace, but moments when you handed it over willingly. The wisdom is in understanding that holding onto your equilibrium isn't selfish avoidance; it's the only honest way you can respond to anyone with your best self.