“I once had a sparrow alight upon my shoulder for a moment, while I was hoeing in a village garden, and I felt that I was more distinguished by that circumstance than I should have been by any epaulet I could have worn.”
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Henry David Thoreau 385
1817-1862 American poet, essayist, naturalist, and abolitio… 1817–1862Related quotes

And yet, I am held responsible.
Orthodoxy (1884)

“If I have seen further than others, it is by standing upon the shoulders of giants.”
Letter to Robert Hooke (15 February 1676) [dated as 5 February 1675 using the Julian calendar with March 25th rather than January 1st as New Years Day, equivalent to 15 February 1676 by Gregorian reckonings.] A facsimile of the original is online at The digital Library https://digitallibrary.hsp.org/index.php/Detail/objects/9792. The quotation is 7-8 lines up from the bottom of the first page. The phrase is most famous as an expression of Newton's but he was using a metaphor which in its earliest known form was attributed to Bernard of Chartres by John of Salisbury: Bernard of Chartres used to say that we [the Moderns] are like dwarves perched on the shoulders of giants [the Ancients], and thus we are able to see more and farther than the latter. And this is not at all because of the acuteness of our sight or the stature of our body, but because we are carried aloft and elevated by the magnitude of the giants. Modernized variants: If I have seen further it is by standing on the shoulders of giants. If I have seen further it is only by standing on the shoulders of giants.
Variant: If I have seen further it is by standing on ye sholders of Giants.
Source: The Correspondence Of Isaac Newton

Discussing two separate pre-season shoulder injuries, sustained, respectively, in February 1968 to the right shoulder, and in March 1969 to the left; as quoted in "A Sounder Clemente Has New Outlook; Buc Super Star May Play On and On" https://news.google.com/newspapers?id=JFAOAAAAIBAJ&sjid=4H0DAAAAIBAJ&pg=7168,1534716 by Charley Feeney, in The Pittsburgh Post-Gazette (Tuesday, August 12, 1969), p. 18
Baseball-related, <big><big>1960s</big></big>, <big>1969</big>

Feb 2010, http://www.thisisnottinghamforest.co.uk/news/Forest-boss-Davies-stand-record/article-1832938-detail/article.html
A response to Forest supporters who booed when he made a substitution at Doncaster Rovers

“If I had a flower for every time I thought of you, I could walk through my garden forever.”

Letter to Archbishop of Canterbury (14 October 1940), quoted in Keith Feiling, Neville Chamberlain (London: Macmillan, 1946), p. 455.
Post-Prime Ministerial

El Condor Pasa (If I Could)
Song lyrics, Bridge over Troubled Water (1970)