Tranquillity (n.) has no worse enemy than a companion who laments everything, however loyal.
Tranquillity (n.) belongs to the man who does not engage in many activities, privately or publicly, beyond what necessity demands.
Tranquillity (n.) that nothing has tested is no tranquillity but a flat calm — what Demetrius called a “Dead Sea.”
Tranquillity (n.) is a thing very close to being a god: to be unshaken, never raising itself up or casting itself down.
Tranquillity (n.) has two enemies: stubbornness, which cannot bear change, and fickleness, which cannot bear to endure.
Tranquillity (n.) at its height is a mind amid the storm that calls on its own fate to prove the truth and hopes to learn something from death itself.
Tranquillity (n.) is a frail thing that all the advice in the world cannot guard — only unremitting care of the wavering mind holds it.