In a Interview With Shirley K. Cohen http://oralhistories.library.caltech.edu/32/1/OH_Patterson.pdf
Quotes about youngster
A collection of quotes on the topic of youngster, use, doing, other.
Quotes about youngster

The Unhappiest People on Earth? You'd never guess, p. 259
The World According to Clarkson (2005)

"That's What America Is," speech given on Gay Freedom Day (1978-06-25) in San Francisco

Nobel banquet speech http://nobelprize.org/nobel_prizes/physics/laureates/1976/ting-speech.html, December 10, 1976

The Art of Measurement (1525).
Times of India interview (2014)
Context: I hope that youngsters and civil society organizations and every Indian will feel proud. It is a noble cause to work for the rights of children. It is a movement against child labour and everyone must join it.

Taped statement (August 1979); Reagan is on record as opposing legalization of Marijuana: "I also want to applaud you for helping the people of Oregon fight a misguided minority that would legalize marijuana. That would be the worst possible message to send to our young people." Speech http://www.reagan.utexas.edu/archives/speeches/1986/073086a.htm (30 July 1986); Reagan's son Michael has disputed the fervor of his opposition: "Of course Dad was for legalization. … He wasn't crazy, he didn't want his kids in jail!"
"Reagan's Marijuana Comments Cause Stir" (11 May 2002) http://www.newsmax.com/archives/articles/2002/5/11/12343.shtml
1970s
Context: The smoke from burning marijuana contains many more cancer-causing substances than tobacco. And if that isn’t enough it leads to bronchitis and emphysema. If adults want to take such chances that is their business. But surely the communications media … should let four million youngsters know what they are risking.

Adolf Hitler c. 1933; as quoted in Hitler Speaks http://books.google.com/books?id=PndurCstDZMC&pg=PA251 (1939), by Hermann Rauschning, London: Thornton Butterworth, p. 247.
Misattributed
Source: Hitler's Letters and Notes
Context: I am beginning with the young. We older ones are used up. Yes, we are old already. We are rotten to the marrow. We have no unrestrained instincts left. We are cowardly and sentimental. We are bearing the burden of a humiliating past, and have in our blood the dull recollection of serfdom and servility. But my magnificent youngsters! Are there finer ones anywhere in the world? Look at these young men and boys! What material! With them, I can make a new world.

“Flattery is useful when dealing with youngsters.”

Autobiographical Essay (2001)

Comments on baseball in the Brooklyn Daily Eagle (23 July 1846), as quoted in Walt Whitman Looks at the Schools (1950) by Florence Bernstein Freedman, p. 126-127 http://books.google.com/books?id=M34nK8SaiMcC&dq=Walt+Whitman+schools&lr=&source=gbs_summary_s&cad=0

Black, Conrad et al, "A Brief to the Special Senate Committee on the Mass Media from the Sherbrooke Record...", 1969 : Despite Black's involvement in press ownership, he heaped scorn on journalism

As quoted in "The Scoreboard: Hitting in Daylight" (.411 Vs. .302) Best For Clemente; Roberto 'Feels Good' In Sunshine; Chicago's Wrigley Field His Favorite; Clemente Can Hit to All Field; Pirates Paid Only $4,000 For Him" https://news.google.com/newspapers?id=YGscAAAAIBAJ&sjid=t04EAAAAIBAJ&pg=4128%2C3280138 by Les Biederman, in The Pittsburgh Press (Sunday, March 11, 1962), Sec. 4. p. 3
Baseball-related, <big><big>1960s</big></big>, <big>1962</big>

Re: S-exp vs XML, HTML, LaTeX (was: Why lisp is growing) http://groups.google.com/group/comp.lang.lisp/msg/9a30c508201627ee (Usenet article).
Usenet articles, Miscellaneous

By Krishnamachari Srikanth.
Kumble Calls it a Day: Quotes... For and By Kumble...

On Babe Ruth, in Ch. 16 : The Babe and I, p. 222
My Life In Baseball : The True Record (1961)

Stein's comment about homosexuality and homophobia, from a conversation with Samuel Steward recounted in Dear Sammy: Letters from Gertrude Stein and Alice B. Toklas (1977)

By Arjuna Ranatunga in "Kumble Calls it a Day: Quotes... For and By Kumble..."

On dedicating the Astronaut Hall of Fame — reported in Associated Press (May 12, 1990) "Five of Mercury Seven return to the Cape, Launch Hall of Fame - Astronauts hope exhibits will inspire youths to learn", The Gazette, p. A2.

via Mental Floss http://mentalfloss.com/article/79393/traceroute-documentary-about-nerds-and-annihilation

On banning Jallikattu, as quoted in "A solitary Maneka fights ‘jallikattu’" http://www.dnaindia.com/india/report-a-solitary-maneka-fights-jallikattu-9828, DNA India (14 November 2005)
2001-2010

Tony Lopez, "The natural successor to President Arroyo?", BizNews Asia, 11-18 June 2007, p. 25, ISSN 1655-7263.
2007

“Interviewer: Your advice to youngsters who want to take up the sport”
referring to cricket
Belgium v. United States http://listenonrepeat.com/watch/?v=ZYFWEdYReHk#Every_USA_World_Cup_Goal (1 July 2014).
2010s, 2014, 2014 FIFA World Cup

http://web.archive.org/web/20081015182445/http://www.news.com.au/technology/story/0,25642,24493980-5014239,00.html
Other Articles

Plunkitt of Tammany Hall, Chapter 16, Plunkitt’s Fondest Dream
'And I'll stand upside down to demonstrate that, I said, 'Stop the sentence. You are self-disclosing; you are not self-expressing.'
Homage to the square' (1964), Oral history interview with Josef Albers' (1968)

He smiled and replied “You have a point there!”.
During the official visit of President Richard Nixon to India, quoted In: P.250.
Law in the Scientific Era

Lieutenant Jack Bullen, p. 307
Sharpe (Novel Series), Sharpe's Escape (2003)
Whatever happened to Bond Girl Valerie Leon? http://www.express.co.uk/life-style/life/614933/Bond-Girl-Valerie-Leon-career-life (November 2, 2015)

As quoted in "Space All systems go for National Space Day" at CNN (4 May 2000) http://articles.cnn.com/2000-05-03/tech/space.day_1_challenger-center-space-science-education-international-space-station-the?_s=PM:TECH; also at John Glenn Friendship 7 Day http://www.bandmonline.com/john-glenn-friendship-7-day-1.2673727#.TzyskbSt3LQ.

New York City (February 1916), p. 145
1910s, Letters to Anita Pollitzer' (1916)

Ranatunga on cricketer Anil Kumble, in "Kumble Calls it a Day: Quotes... For and By Kumble..."

From a letter to H. P. Lovecraft (c. April 1932)
Letters
James Burnham (1961) Suicide of the West; as cited in: Suicide of the West http://nlt.ashbrook.org/2006/03/suicide-of-the-west.php Posted by Steven Hayward on ashbrook.org 2006/03; And in 2012 on powerlineblog.com http://www.powerlineblog.com/archives/2012/01/suicide-of-the-west.php

Speech at UC Berkeley http://www.jewishsf.com/content/2-0-/module/displaystory/story_id/19324/edition_id/391/format/html/displaystory.html, November 22, 2002

“I am making way for youngsters.”
Words after he resigned, 26 October 2012. http://www.ndtv.com/article/india/external-affairs-minister-sm-krishna-resigns-284759
As quoted in "Obama and his party offer America's young … death, misery, and slavery" http://non-intervention.com/1143/obama-and-his-party-offer-america%E2%80%99s-young-%E2%80%A6-death-misery-and-slavery/ (2013), by M. Scheuer, Michael Scheuer's Non-Intervention.
2010s

Can technology trump Trumpism? http://www.ynetnews.com/articles/0,7340,L-4882175,00.html, Ynetnews (21-11-16)

Interview for Director magazine (4 July 1983) http://www.margaretthatcher.org/document/105182, quoted in Chris Ogden, Maggie: An Intimate Portrait of a Woman in Power (New York: Simon and Schuster, 1990), p. 345.
Second term as Prime Minister

Interview http://transcripts.cnn.com/TRANSCRIPTS/0009/23/se.02.html with CNN Anchor Kyra Phillips (September 23, 2000)
2000s, 2000

Deeds Rather Than Words (1963)
Context: I don't believe in playing down to children, either in life or in motion pictures. I didn't treat my own youngsters like fragile flowers, and I think no parent should.
Children are people, and they should have to reach to learn about things, to understand things, just as adults have to reach if they want to grow in mental stature. Life is composed of lights and shadows, and we would be untruthful, insincere, and saccharine if we tried to pretend there were no shadows. Most things are good, and they are the strongest things; but there are evil things too, and you are not doing a child a favor by trying to shield him from reality. The important thing is to teach a child that good can always triumph over evil, and that is what our pictures attempt to do.

The Quotable Walt Disney (2001)
Context: To the youngsters of today, I say believe in the future, the world is getting better; there still is plenty of opportunity. Why, would you believe it, when I was a kid I thought it was already too late for me to make good at anything.

Interview on Inside the Actors Studio (2007) http://uk.youtube.com/user/pfeifferpfan2

“Races, baseball, and politics are for the youngsters.”
Letter to Lucy Webb Hayes (14 August 1875)
Diary and Letters of Rutherford Birchard Hayes (1922 - 1926)
Context: My speaking is irregular. Sometimes quite good, sometimes not, but generally will do... I am too far along in experience and years both for this business. I do not go into [it] with the zest of old times. Races, baseball, and politics are for the youngsters.

Adolf Hitler c. 1933; as quoted in Hitler Speaks http://books.google.com/books?id=PndurCstDZMC&pg=PA251 (1939), by Hermann Rauschning, London: Thornton Butterworth, p. 247.
Misattributed

( Source http://www.narendramodi.in/category/quotes/).
2012
I got the job – much to my parents’ horror, who wanted me to keep my respectable job, but I was determined to become an actress.
Whatever happened to Bond Girl Valerie Leon? http://www.express.co.uk/life-style/life/614933/Bond-Girl-Valerie-Leon-career-life (November 2, 2015)

[And my heart goes to..., http://www.telegraphindia.com/1060217/asp/etc/story_5840755.asp, 2009-04-29, telegraphindia.com]
The Actress' Take On Films

On the Mexican–American War, p. 448 https://archive.org/details/aroundworldgrant02younuoft/page/n4
1870s, Around the World with General Grant (1879)

Source: All That Matters (1922), p.36 - A Boy And His Dad, stanza 2.

Year unknown, published in 2001, The Quotable Walt Disney (2001)