"Serenity of mind, gentleness, silence, self-control, purity of nature — this is called the austerity of mind."
Modern explanation
When the day pushes against you, remember: Calm is not a personality trait but a discipline. Tiny daily acts of restraint build it.
Practical application
Lower your voice and slow your speech by half. Your nervous system will follow.
Reflection question
If I respond from my best self, what does that response sound like?