She has, at length, recovered peace of mind and tranquillity of conscience.
Detesting, as I did, tranquillity, I used to send my man-servant to copy the telegrams.
Fandor found it almost impossible to recover his tranquillity of mind.
And the apparent ignorance and tranquillity in which he found Constance completed his dismay.
Her tranquillity, her happiness only, were of ...