Power is so characteristically calm, that calmness in itself has the aspect of strength.
He who has faith has... an inward reservoir of courage, hope, confidence, calmness, and assuring trust that all will come out well - even though to the world it may appear to come out most badly.
The more tranquil a man becomes, the greater is his success, his influence, his power for good. Calmness of mind is one of the beautiful jewels of wisdom.
The opposite of anger is not calmness, its empathy.
Nothing is so aggravating than calmness.