“In adversity, remember to keep an even mind.”
Book II, ode iii, line 1
Odes (c. 23 BC and 13 BC)
Original
Aequam memento rebus in arduis servare mentem.
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Horace 92
Roman lyric poet -65–-8 BCRelated quotes

"On the Conversations of Lords," New Monthly Magazine (April 1826)
Men and Manners: Sketches and Essays (1852)

“I keep remembering — I keep remembering. My heart has no pity on me.”

Augustus William Hare and Julius Charles Hare Guesses at Truth (London: Macmillan, ([1827-48] 1867) pp. 209-10.
Misattributed