“You start to think, when you’re younger, how important everything is and how things have to go right—your job, your career, your life, your choices, and all of that. Then, after a while, you start to realise that – I’m talking the big picture here – eventually you die, and eventually the sun burns out and the earth is gone, and eventually all the stars and all the planets in the entire universe go, disappear, and nothing is left at all. Nothing – Shakespeare and Beethoven and Michelangelo gone. And you think to yourself that there’s a lot of noise and sound and fury – and where’s it going? It’s not going any place… Now, you can’t actually live your life like that, because if you do you just sit there and – why do anything? Why get up in the morning and do anything? So I think it’s the job of the artist to try and figure out why, given this terrible fact, you want to go on living.”

The origins of this quote are unknown. At least two sources can be traced back, but these sources date back to the 1940 years; long time after Lincon's death.
Source 1: The 2003 "Masonic Historiology" from Allotter J. McKowe contains on page 55 (page 55 is dated on Jan. 11, 1944) the poem " What Is a Boy? http://books.google.de/books?id=K5CHWRttt-gC&pg=PA55&dq=desk" from an unknown author. The poem reads:
:: He is a person who is going to carry on what you have started.
:: He is to sit right where you are sitting and attend when you are gone to those things you think are so important.
:: You may adopt all the policies you please, but how they will be carried out depends on him.
:: Even if you make leagues and treaties, he will have to manage them.
:: He is going to sit at your desk in the Senate, and occupy your place on the Supreme Bench.
:: He will assume control of your cities, states and nations.
:: He is going to move in and take over your prisons, churches, schools, universities and corporations.
:: All your work is going to be judged and praised or condemned by him.
:: Your reputation and your future are in his hands.
:: All you work is for him, and the fate of the nations and of humanity is in his hands. Quotes about life http://www.quotesaboutlifee.com/2012/04/best-quotes-on-life-best-sayings-on.html
:: So it might be well to pay him some attention.
Source 2: The newspaper "The Florence Times" from Florence, Alabama (Volume 72 - Number 120) contains in its Wednesday afternoon edition from October 30, 1940 a statement from a Dr. Frank Crane. The entitled "What is a Boy?" statement http://news.google.com/newspapers?nid=1842&dat=19401030&id=yx8sAAAAIBAJ&sjid=I7oEAAAAIBAJ&pg=3738,3720511 reads:
Disputed