Quotes about timing
page 3

"The Man Who Would Be Queen" in Melody Maker (2 May 1981).

Source: https://www.goodreads.com/author/quotes/14108295.alexis_karpouzos?page=2

“Sadness flies away on the wings of time.”

“I wish it were as easy to buy time as it is to buy good books.”

“If you're going through rough times, just stick around, cause everything has to end eventually.”
McKenna Grace [citation needed]
Other sources
Source: Banksy In His Own Words- Interview At The Sun https://web.archive.org/web/20181102203920/http://graffart.eu/blog/2010/09/banksy-in-his-own-words-interview-at-the-sun/, Graffart.eu, Retrieved 2 November 2018

The Notebooks of Leonardo da Vinci (1883), XIX Philosophical Maxims. Morals. Polemics and Speculations.
Variant: In rivers, the water that you touch is the last of what has passed and the first of that which comes; so with present time.
Source: Leonardo's Notebooks

“Truth is like the sun. You can shut it out for a time, but it ain't going away.”
Another handwriten message on Elvis' King James -Bible http://www.dailymail.co.uk/news/article-2188891/Elvis-bible-containing-handwritten-notes-star-expected-fetch-thousands-auction.html
Variant: Truth is like the sun. You can shut it out for a time, but it ain't going away.

“People won't have time for you if you are always angry or complaining.”

"What Makes Opera Grand?", Vogue (December 1958)

“Read a little. Meditate more. Think of God all the time.”

“Man, sometimes it takes you a long time to sound like yourself.”

Speech at the Republican National Convention, Platform Committee Meeting, Miami, Florida" (31 July 1968)
1960s

“Whenever you find that you are on the side of the majority, it is time to reform.”
Alternate (also Twain's): Whenever you find that you are on the side of the majority, it is time to pause and reflect.
Source: Mark Twain's Notebook (1935), p. 393

“Never attempt to teach a pig to sing; it wastes your time and annoys the pig.”
Source: Time Enough for Love

“The trouble is, you think you have time.”
Source: Buddha's Little Instruction Book

“Real stupidity beats artificial intelligence every time.”
Source: Hogfather

Source: The Proud Highway: Saga of a Desperate Southern Gentleman, 1955-1967

“I want to be alone and I want people to notice me — both at the same time”

Source: At the Same Time: Essays and Speeches

“The tragedy of this world is that no one is happy, whether stuck in a time of pain or joy.”
Source: Einstein's Dreams
Variant: It has been said, 'time heals all wounds.' I do not agree. The wounds remain. In time, the mind, protecting its sanity, covers them with scar tissue and the pain lessens. But it is never gone.

Source: Loving What Is: Four Questions That Can Change Your Life

“The truth is, honey, I've enjoyed my life. I've had a hell of a good time.”

“I would have written a shorter letter, but I did not have the time.”
Often misattributed to Twain, this is actually by Blaise Pascal, "Lettres provinciales", letter 16, 1657:
Je n'ai fait celle-ci plus longue que parce que je n'ai pas eu le loisir de la faire plus courte.
Translation: I have only made this [letter] longer, because I have not had the opportunity to make it shorter.
Misattributed
Source: The Provincial Letters

“Am I a romantic? I've seen "Wuthering Heights" ten times. I'm a romantic.”

Source: Sources of Strength: Meditations on Scripture for a Living Faith
Source: The Road Less Traveled: A New Psychology of Love, Traditional Values, and Spiritual Growth

As quoted in Nike Culture : The Sign of the Swoosh (1998), by Robert Goldman and Stephen Papson, p. 49

“I always felt like I was meant to have been born in another era, another time.”

“I am hopelessly in love with a memory.
An echo from another time, another place.”

“Spend your money on the things money can buy. Spend your time on the things money can’t buy.”
Source: The Wind-Up Bird Chronicle

“How many times have people used a pen or paintbrush because they couldn’t pull the trigger?”

Interview https://www.youtube.com/watch?v=9g-U2-cAUMM

This is probably the most famous of apparently apocryphal remarks attributed to Lincoln. Despite it being cited variously as from an 1856 speech, or a September 1858 speech in Clinton, Illinois, there are no known contemporary records or accounts substantiating that he ever made the statement. The earliest known appearance is October 29, 1886 in the Milwaukee Daily Journal http://anotherhistoryblog.blogspot.com/2009/02/fooling-people-earlier.html. It later appeared in the New York Times on August 26 http://query.nytimes.com/gst/abstract.html?res=F30817FF3E5413738DDDAF0A94D0405B8784F0D3 and August 27 http://query.nytimes.com/gst/abstract.html?res=F00E15FF3E5413738DDDAE0A94D0405B8784F0D3, 1887. The saying was repeated several times in newspaper editorials later in 1887. In 1888 and, especially, 1889, the saying became commonplace, used in speeches, advertisements, and on portraits of Lincoln. In 1905 and later, there were attempts to find contemporaries of Lincoln who could recall Lincoln saying this. Historians have not, generally, found these accounts convincing. For more information see two articles in For the People: A Newsletter of the Abraham Lincoln Association, "'You Can Fool All of the People' Lincoln Never Said That", by Thomas F. Schwartz ( V. 5, #4, Winter 2003, p. 1 http://abrahamlincolnassociation.org/Newsletters/5-4.pdf) and "A New Look at 'You Can Fool All of the People'" by David B. Parker ( V. 7, #3, Autumn 2005, p. 1 http://abrahamlincolnassociation.org/Newsletters/7-3.pdf); also the talk page. The statement has also sometimes been attributed to P. T. Barnum, although no references to this have been found from the nineteenth century.
Variants:
You can fool all the people some of the time, and some of the people all of the time, but you cannot fool all of the people all of the time.
You can fool all of the people some of the time, and some of the people all of the time, but you can't fool all of the people all of the time.
You can fool all the people some time, you can fool some of the people all of the time, but you can not fool all the people all the time.
Disputed

“A man who dares to waste one hour of time has not discovered the value of life.”
volume I, chapter VI: "The Voyage", page 266 http://darwin-online.org.uk/content/frameset?pageseq=284&itemID=F1452.1&viewtype=image; letter to sister Susan Elizabeth Darwin (4 August 1836)
The Life and Letters of Charles Darwin (1887)
Source: The Life & Letters of Charles Darwin

As quoted in Al Arab Vol. 9 (1970) by the League of Arab States, p. 9

Attributed to Twain but never sourced, this quotation should not be regarded as authentic.
Misattributed

Launch.com, November 2, 2000<!-- site no longer exists -->
In a Interview With Shirley K. Cohen http://oralhistories.library.caltech.edu/32/1/OH_Patterson.pdf

“At times the world sees straight, but many times the world goes astray.”
Interdum volgus rectum videt, est ubi peccat.
Book II, epistle i, line 63
Epistles (c. 20 BC and 14 BC)

http://www.popmonk.com/actors/leonardo-dicaprio/quotes-leonardo-dicaprio.htm

Quoted in: Honor Books, W. B. Freeman (2004), God's Little Devotional Book for Girls, p. 205
2000s

Canto V, lines 127–138 (tr. Mandelbaum).
The Divine Comedy (c. 1308–1321), Inferno

Was klein ist im Beginn wird oft am Ende überaus groß sein. Und so geschieht es, das wer im Anfange auch nur um ein Weniges von der Wahrheit abweicht, im Verlauf immer weiter und weiter und zu tausendmal größern Irrthümer fortgeführt wird.
On the Several Senses of Being in Aristotle (1862)

“There is no greater sorrow
Than to be mindful of the happy time
In misery.”
Canto V, lines 121–123 (tr. Longfellow).
The Divine Comedy (c. 1308–1321), Inferno

The Yoga of Nutrition, Editions Prosveta, 2012 ebook edition, pp. 24 https://books.google.it/books?id=jnoVCwAAQBAJ&pg=PT24-25.

BBC News 'On this day' http://news.bbc.co.uk/onthisday/hi/dates/stories/june/1/newsid_2492000/2492915.stm, June 1.
On the end of white minority rule in 1979.

Response to the Maradona comparisons, 2010 http://www.telegraph.co.uk/sport/football/players/lionel-messi/7527633/Barcelonas-Lionel-Messi-says-he-will-never-be-as-good-as-Diego-Maradona.html

Video Music Awards 2009, Taylor Swift and Kanye West https://www.youtube.com/watch?v=NUHQpCM7yyY (video)

“Time is liquid. One moment is no more important than any other and all moments quickly run away.”
Source: Bluebeard (1987), p. 82

Also told to Charles Larpenteur at Fort Union in 1867. Published in Utley, Robert M. The Lance and the Shield. New York: Henry Holt and Co., 1993. p. 73.