Quietly Composed, Comfortably Quiet

Those who have done great works since days of old are nothing if not quietly composed and comfortably quiet.
The Third Year of Ansei, The Eighth of April. “Lecture Notes”

8日恬退緩静
古より大業を成すの人、恬退緩静ならざるはなし。
安政三年四月八日「講孟劄記」