Serenity may refer to:
"The closest state of mind to happiness is not loving, but serenity."
"If you find serenity and happiness, some may be jealous. Be happy anyway."
"Do your work, then step back. The only path to serenity."
"Enthusiasm is a supernatural serenity."
"It is always in the midst, in the epicenter, of your troubles that you find serenity."