Quotes about want
page 3

“The belly is an ungrateful wretch, it never remembers past favors, it always wants more tomorrow.”
Source: One Day in the Life of Ivan Denisovich (1962)

“Ask for what you want and be prepared to get it!”

“I don't want to die as long as I can work; the minute I can not, I want to go.”

“When you want something, all the universe conspires in helping you to achieve it.”
E quando você quer alguma coisa, todo o Universo conspira para que você realize seu desejo.
Variant: And, when you want something, all the universe conspires in helping you to achieve it.
Source: The Alchemist (1988), p. 22; a variant of this has become attributed to Ralph Waldo Emerson: "Once you make a decision, the universe conspires to make it happen" — but no occurrence of this a statement has been located prior to in The Gift of Depression : Twenty-one Inspirational Stories Sharing Experience, Strength, and Hope (2001) by John F. Brown, p. 56

“If there's a book that you want to read, but it hasn't been written yet, then you must write it.”

“If you want to get laid, go to college. If you want an education, go to the library.”

Se, depois de eu morrer, quiserem escrever a minha biografia,
Não há nada mais simples.
Tem só duas datas—a da minha nascença e a da minha morte.
Entre uma e outra coisa todos os dias são meus.
Alberto Caeiro (heteronym), "Se, depois de eu morrer" (8 November 1915), trans. Jonathan Griffin.
Source: Poems of Fernando Pessoa

“From someone who doesn't want to share your destiny, you should neither accept a cigarette”
Source: The Burning Brand: Diaries, 1935-1950
Source: Way of the Peaceful Warrior: A Book That Changes Lives

As quoted in The Federal Career Service: A Look Ahead (1954)
1950s
Variant: Now I think, speaking roughly, by leadership we mean the art of getting someone else to do something that you want done because he wants to do it.

On voluntary euthanasia as quoted in People's Daily Online (14 June 2006) http://english.people.com.cn/200606/14/eng20060614_273839.html

“If there's anything more important than my ego around, I want it caught and shot now.”
Source: The Hitchhiker's Guide to the Galaxy
“There's nothing more dangerous than someone who wants to make the world a better place.”
Existencilism (2002)

“I don't want to go to heaven. None of my friends are there”
No known source in Oscar Wilde's works. Earliest known example of a similar quote comes from a 2001 usenet post https://groups.google.com/forum/message/raw?msg=alt.atheism/ZadPWBw-wew/G_3tx370wpoJ (not attributed to Wilde)
Attributed to Wilde on Goodreads https://www.goodreads.com/quotes/15736-i-don-t-want-to-go-to-heaven-none-of-my?page=83 some time on or before January 2008.
Bears some resemblance to Machiavelli's deathbed dream https://en.wikiquote.org/wiki/Niccol%C3%B2_Machiavelli#Disputed.
Disputed

“Don't tell me what I'm doing; I don't want to know.”

Source: 1910s, My Larger Education, Being Chapters from My Experience (1911), Ch. V: The Intellectuals and the Boston Mob (pg. 118)

“Do what you have to do, to do what you want to do.”
Variant: Do what you gotta do so you can do what you wanna do.

“I really believe, or want to believe, really I am nuts, otherwise I'll never be sane.”

“Son, are you happy?
I don't mean to pry,
but do you dream of Heaven?
Have you ever wanted to die?”
Source: The Melancholy Death of Oyster Boy and Other Stories

“If you want a guarantee, buy a toaster.”

“What I have to say is all in the music. If I want to say anything, I write a song.”

“If you want to change the world, pick up your pen and write.”

According to R. Ken Rasmussen in The Quotable Mark Twain (1998), this is most probably not Twain's.
Misattributed

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

“We have a right to believe whatever we want, but not everything we believe is right.”

“Men always want to be a woman's first love - women like to be a man's last romance.”

“You don't write because you want to say something, you write because you have something to say.”
Notebook E: Epigrams, Wisecracks, and Jokes https://books.google.com/books?id=NIhKY8SpAE4C&q=%22You%20don%27t%20write%20because%20you%20want%20to%20say%20something%3B%20you%20write%20because%20you%27ve%20got%20something%20to%20say.%22&pg=PA123#v=onepage, edited by Edmund Wilson (1945)
Quoted, The Crack-Up (1936)

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

“I want to be with those who know secret things or else alone.”

Source: Sources of Strength: Meditations on Scripture for a Living Faith

“We do what we have to so we can do what we want to.”

“Sunlight comes into your house not because you want it. It happens because you open the windows.”
Source: Of Mystics & Mistakes

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

“I wanted my heart to bloom
and shelter a shadow of love”
<span class="plainlinks"> The Tajmahal and my Love http://www.best-poems.net/love_poems/the_taj_mahal_amp_my_love.html/</span>
From Poetry

On Wii
Source: November 16, 2006 Business Week interview http://www.businessweek.com/technology/content/nov2006/tc20061116_750580.htm

“If anyone want to become a socialist in a hurry, he should come to the United States.”
American Sketches

Interview for Sounds Magazine on 17 July 1982. [Armed Combat, Sounds Magazine, 17 July 1982]

" Message to the people of the United States of America http://www.afghan-web.com/documents/let-masood.html" (1998).

Testimony to the Dawes Commission (22 August 1883)

His resentment of being born a Jat which expressed in a speech in 1977 p. 204
Profiles of Indian Prime Ministers

About getting the part of Harry Potter http://www.danradcliffe.com/index.php?option=com_content&view=article&id=23&Itemid=28

During a party after municipal elections ( video https://www.youtube.com/watch?v=gaRxCHXuoLA) (19 March 2014), quoted in Aljazeera: Dutch far-right in crisis over Wilders chant (22 March 2014) http://www.aljazeera.com/news/europe/2014/03/dutch-far-right-crisis-over-wilders-chant-2014322143319384578.html
2010s

Attributed in "Making a run at the Olympic dream", an unsigned article from The StarPhoenix, 9 May 2007, at canada.com (CanWest MediaWorks Publications Inc.) http://www.canada.com/saskatoonstarphoenix/news/sports/story.html?id=b111ee9e-182a-4cff-831a-f784cc7bb37e

Variations of this piece have also been misattributed to Andy Rooney and Woody Allen. The original source is a variation on a piece by Sean Morey. ( "snopes.com: Andy Rooney on Everything", Snopes.com, 2012-09-09 http://www.snopes.com/politics/soapbox/rooney3.asp, )
Misattributed

National Prayer Breakfast speech, Washington, D.C. (3 February 1994) http://www.catholiceducation.org/articles/abortion/ab0039.html.
1990s

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

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

“I don't really have an allowance. When I want to get something I just have to ask my mom.”
Quoted in Stv entertainment "Justin Bieber's strict mother" http://entertainment.stv.tv/showbiz/176908-justin-biebers-strict-mother/, May 2010

”
On the importance of charity - "SCATTERED! Eleven Children, One Wife, No Home" http://www.thenigerianvoice.com/news/1273/scattered-eleven-children-one-wife-no-home.html Nigerian Voice (October 9 2009)

To Leon Goldensohn (14 June 1946). Quoted in "The Nuremberg Interviews" - by Leon Goldensohn, Robert Gellately - History - 2004

Quoted in "The Long Path to Irena Sendler - Mother of the Holocaust Children" http://www.socwork.net/2006/1/historicalportraits/wieler, by Joachim Wieler Social Work & Society, vol. 4 (2006)
Inside Edition Interview https://www.youtube.com/watch?v=RtvmGdzgdLM
“I just wanted to see how the shorts felt again.”
After changing his famous "piratas" trousers for a more traditional look at the Madrid Masters http://news.bbc.co.uk/sport2/hi/funny_old_game/quotes_of_week/4371108.stm

Radio Interview, June 27 1999 http://www.geocities.jp/bobbby_b/mp3/F_08_3.MP3
1990s

" Exclusive interview with Matthew Mcconaughey http://www.hollywood.com/news/movies/7774937/exclusive-interview-with-matthew-mcconaughey?page=all" on hollywood.com, March 18, 2011: On playing Mick Haller in the The Lincoln Lawyer