Remember too on every occasion which leads thee to vexation to apply this principle: not that this is a misfortune, but that to bear it nobly is good fortune.
Marcus Aurelius (AD 121-180) Roman emperor (161-180), Stoic philosopher
Meditations, Book 4, #49 [tr. Long]
(Source)
Alt. trans. [Staniforth (1964)]: "Here is a rule to remember in the future, when anything tempts you to feel bitter: not, 'This is a misfortune,' but 'To bear this worthily is good fortune.'"
