Actually an ad-lib introduced by Rutland Barrington when playing the rôle of Pooh-Bah, to the annoyance of Gilbert.
The Mikado (1885)
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page 71
Voted 44th funniest joke of all time in "The 75 Funniest Jokes of All Time" in GQ magazine (June 1999)
E=MO² (1985), Die, heretic!
Statement of 1937 or earlier, as quoted in The New Speaker's Treasury of Wit and Wisdom (1958) edited by Herbert Victor Prochnow
“There is only one enduring happiness in life—to live for others.”
Part 1, chapter 2 http://books.google.com/books?id=eWU4AAAAYAAJ&q=%22there+is+only+one+enduring+happiness+in+life+to+live+for+others%22&pg=PA22#v=onepage
Family Happiness (1859)
On Leon Trotsky Saturday Evening Post (6 November 1926) - note that Rogers specifically spelled the word "dident"
Context: I bet you if I had met him and had a chat with him, I would have found him a very interesting and human fellow, for I never yet met a man that I dident like. When you meet people, no matter what opinion you might have formed about them beforehand, why, after you meet them and see their angle and their personality, why, you can see a lot of good in all of them.
“There are no secrets except the secrets that keep themselves.”
Confucius, in Pt. III : The Thing Happens
1920s, Back to Methuselah (1921)
Lövborg, Act II
Hedda Gabler (1890)
Quotes of Salvador Dali, 1971 - 1980, Dali interviewed by Victor Bockris, 1974
as cited in The Unspeakable confessions of Salvador Dali, Parinaud, ed. W. H. Allen, London 1976, p. 113
Quotes of Salvador Dali, 1971 - 1980, Comment on deviant Dali, les aveux inavouables de Salvador Dali
Source: https://twitter.com/dalailama/status/1587016915838332928
“Be the creators of good mood: a smile saves life.”
Original: Siate artefici del buon umore: un sorriso salva la vita.
Source: prevale.net
“The earth has its music for those who will listen.”
Often misattributed to Shakespeare, because the words remind us of “If music be the food of love play on”. Statement is also commonly associated with Santayana, but no source or attribution can be found in his works or correspondence.
Variant: The earth has music for those who listen.
Source: Book Fireside Fancies, Poem The Magic of Sound. 1955.
Context: I've heard the soft whisper of wind in the pine trees,
The silvery ripple of brooklets at play;
I've heard the low voice of a sweet singing mother
As she sang to her child at the end of the day.
I've heard the faint rustle of sails in the sunset
And blue waves caressing the wild, rockbound shore;
The whistle of trains as they cross the green prairie
And mountains re-echo the cataract’s roar.
The notes of the organs in ancient cathedrals,
Where hearts of the faithful are lifted in song;
I've heard the gay laughter as children were playing,
The chatter and buzz of a large, happy throng.
The earth has its music for those who will listen;
Its bright variations forever abound.
With all of the wonders that God has bequeathed us,
There's nothing that thrills like the magic of sound.
“Being ignorant is not so much a shame, as being unwilling to learn.”