To Katanga and Back: a UN Case History (New York: Simon and Schuster, 1962) p. 31
“In my view, Anglo-Irish history is for Englishmen to remember, for Irishmen to forget.”
Ireland in the New Century (1904) by Horace Plunkett
Often quoted as: Irish history is something no Englishman should forget and no Irishman should remember.
Misattributed
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George Bernard Shaw 413
Irish playwright 1856–1950Related quotes

“There's an old saying about those who forget history. I don't remember it, but it's good.”
Dido and Aeneas (opera; music by Henry Purcell)

Trump speaking during a visit of Enda Kenny, the then Irish head of government https://www.theguardian.com/us-news/2017/mar/17/trumps-irish-proverb-causes-derision-on-the-web (17 March 2017)
2010s, 2017, March

Antithesis
The Note-Books of Samuel Butler (1912), Part IV - Memory and Design

2010s, Hard Truths: Law Enforcement (2015)