xy

@xy, member from Sept. 25, 2023

Favourite quotes (21448)

“If machines produce everything we need, the outcome will depend on how things are distributed. Everyone can enjoy a life of luxurious leisure if the machine-produced wealth is shared, or most people can end up miserably poor if the machine-owners successfully lobby against wealth redistribution. So far, the trend seems to be toward the second option, with technology driving ever-increasing inequality.”

Stephen Hawking (1942–2018) British theoretical physicist, cosmologist, and author

"Science AMA Series: Stephen Hawking AMA Answers!", reddit.com (8 October 2015) https://www.reddit.com/r/science/comments/3nyn5i/science_ama_series_stephen_hawking_ama_answers/cvsdmkv/; also quoted in "Stephen Hawking Says We Should Really Be Scared Of Capitalism, Not Robots" Huffington Post (8 October 2015) http://www.huffingtonpost.com/entry/stephen-hawking-capitalism-robots_us_5616c20ce4b0dbb8000d9f15

“The world has changed far more in the past 100 years than in any other century in history. The reason is not political or economic but technological — technologies that flowed directly from advances in basic science.”

Stephen Hawking (1942–2018) British theoretical physicist, cosmologist, and author

From Hawking's article A Brief History of Relativity http://www.time.com/time/magazine/article/0,9171,993018-6,00.html, in Time magazine (31 December 1999)

“I'm not religious in the normal sense. I believe the universe is governed by the laws of science. The laws may have been decreed by God, but God does not intervene to break the laws.”

Stephen Hawking (1942–2018) British theoretical physicist, cosmologist, and author

Quoted in "Stephen Hawking prepares for weightless flight", New Scientist (26 April 2007) http://www.newscientist.com/article/dn11722-stephen-hawking-prepares-for-weightless-flight.html

“If you are disabled, it is probably not your fault, but it is no good blaming the world or expecting it to take pity on you. One has to have a positive attitude and must make the best of the situation that one finds oneself in; if one is physically disabled, one cannot afford to be psychologically disabled as well. In my opinion, one should concentrate on activities in which one's physical disability will not present a serious handicap. I am afraid that Olympic Games for the disabled do not appeal to me, but it is easy for me to say that because I never liked athletics anyway. On the other hand, science is a very good area for disabled people because it goes on mainly in the mind. Of course, most kinds of experimental work are probably ruled out for most such people, but theoretical work is almost ideal. My disabilities have not been a significant handicap in my field, which is theoretical physics. Indeed, they have helped me in a way by shielding me from lecturing and administrative work that I would otherwise have been involved in. I have managed, however, only because of the large amount of help I have received from my wife, children, colleagues and students. I find that people in general are very ready to help, but you should encourage them to feel that their efforts to aid you are worthwhile by doing as well as you possibly can.”

Stephen Hawking (1942–2018) British theoretical physicist, cosmologist, and author

"Handicapped People and Science" http://books.google.com/books?id=9LVFAAAAYAAJ&q=%22handicapped+people+and+science%22#search_anchor by Stephen Hawking, Science Digest 92, No. 9 (September 1984): 92 (details of citation from here http://www.enotes.com/stephen-hawking-criticism/hawking-stephen/further-reading).

“As scientists, we understand the dangers of nuclear weapons and their devastating effects, and we are learning how human activities and technologies are affecting climate systems in ways that may forever change life on Earth. As citizens of the world, we have a duty to alert the public to the unnecessary risks that we live with every day, and to the perils we foresee if governments and societies do not take action now to render nuclear weapons obsolete and to prevent further climate change… There’s a realization that we are changing our climate for the worse. That would have catastrophic effects. Although the threat is not as dire as that of nuclear weapons right now, in the long term we are looking at a serious threat.”

Stephen Hawking (1942–2018) British theoretical physicist, cosmologist, and author

At a press conference for the Bulletin of the Atomic Scientists, as the Doomsday Clock is moved forward by two minutes to five minutes to midnight, as quoted in "Nukes, climate push 'Doomsday Clock' forward" MSNBC http://www.msnbc.msn.com/id/16670686/ (1 January 2007)

“Einstein was confused, not the quantum theory.”

Stephen Hawking (1942–2018) British theoretical physicist, cosmologist, and author

Lecture at the Amsterdam Symposium on Gravity, Black Holes, and String Theory (21 June 1997)

“These lectures have shown very clearly the difference between Roger and me. He's a Platonist and I'm a positivist. He's worried that Schrödinger's cat is in a quantum state, where it is half alive and half dead. He feels that can't correspond to reality. But that doesn't bother me. I don't demand that a theory correspond to reality because I don't know what it is. Reality is not a quality you can test with litmus paper. All I'm concerned with is that the theory should predict the results of measurements. Quantum theory does this very successfully. It predicts that the result of an observation is either that the cat is alive or that it is dead. It is like you can't be slightly pregnant: you either are or you aren't.”

Stephen Hawking book The Nature of Space and Time

During a debate with Roger Penrose in 1994 at the Isaac Newton Institute for Mathematical Sciences at the University of Cambridge, transcribed in The Nature of Space and Time (1996) by Stephen Hawking and Roger Penrose, p. 121 http://books.google.com/books?id=LstaQTXP65cC&lpg=PP1&dq=nature%20of%20space%20and%20time&pg=PA121#v=onepage&q=&f=false

“The zero-G part was wonderful and the higher-G part was no problem. I could have gone on and on. Space, here I come!”

Stephen Hawking (1942–2018) British theoretical physicist, cosmologist, and author

After completing a zero-gravity flight in a specially modified plane, as quoted in "Hawking takes zero-gravity flight" BBC News (27 April 2007) http://news.bbc.co.uk/1/hi/sci/tech/6594821.stm

“In a world that is in chaos politically, socially and environmentally, how can the human race sustain another 100 years?”

Stephen Hawking (1942–2018) British theoretical physicist, cosmologist, and author

Open question, posted to the Internet, as quoted in The Guardian, and "Watching the World" in Awake! magazine (June 2007); a month after posting the question he explained: I don’t know the answer. That is why I asked the question, to get people to think about it, and to be aware of the dangers we now face.

“We hold these truths to be self-evident that all P-brains are created equal.”

Stephen Hawking book The Universe in a Nutshell

The Universe in a Nutshell (2001)

“The Steady State theory was what Karl Popper would call a good scientific theory: it made definite predictions, which could be tested by observation, and possibly falsified. Unfortunately for the theory, they were falsified.”

Stephen Hawking (1942–2018) British theoretical physicist, cosmologist, and author

The Beginning of Time (1996)

“We are each free to believe what we want and it is my view that the simplest explanation is there is no God. No one created the universe and no one directs our fate. This leads me to a profound realization. There is probably no heaven, and no afterlife either. We have this one life to appreciate the grand design of the universe, and for that, I am extremely grateful.”

Stephen Hawking (1942–2018) British theoretical physicist, cosmologist, and author

Quoted from the Discovery Channel, 15 August 2011. <br class="br"> "Stephen Hawking There is no God. There is no Fate." from episode 1 https://www.youtube.com/watch?v=7L7VTdzuY7Y · [Curiosity: Did God Create the Universe?, http://dsc.discovery.com/tv-shows/curiosity/topics/did-god-create-the-universe.htm, Discovery Communications, LLC., 7 August 2011, 4 July 2013] <br class="br">Curiosity (2011)

“The life we have on Earth must have spontaneously generated itself. It must therefore be possible for life to generate spontaneously elsewhere in the universe.”

Stephen Hawking (1942–2018) British theoretical physicist, cosmologist, and author

From an appearance in the Discovery Channel program Alien Planet (14 May 2005)

“Maybe that is our mistake: maybe there are no particle positions and velocities, but only waves. It is just that we try to fit the waves to our preconceived ideas of positions and velocities. The resulting mismatch is the cause of the apparent unpredictability.”

Stephen Hawking book A Brief History of Time

Source: A Brief History of Time (1988), Ch. 12

“When I gave a lecture in Japan, I was asked not to mention the possible re-collapse of the universe, because it might affect the stock market. However, I can re-assure anyone who is nervous about their investments that it is a bit early to sell: even if the universe does come to an end, it won't be for at least twenty billion years. By that time, maybe the GATT trade agreement will have come into effect.”

Stephen Hawking (1942–2018) British theoretical physicist, cosmologist, and author

The Beginning of Time (1996)

“We should seek the greatest value of our action.”

Stephen Hawking (1942–2018) British theoretical physicist, cosmologist, and author

Response to a question on how we should live, in an interview with The Guardian (15 May 2011)

“I think that it's important for scientists to explain their work, particularly in cosmology. This now answers many questions once asked of religion.”

Stephen Hawking (1942–2018) British theoretical physicist, cosmologist, and author

As quoted in "Return of the time lord" in The Guardian (27 September 2005)

“All my life, I have been fascinated by the big questions that face us, and have tried to find scientific answers to them.”

Stephen Hawking (1942–2018) British theoretical physicist, cosmologist, and author

From the 1997 television program Stephen Hawking's Universe http://www.pbs.org/wnet/hawking/html/home.html <br class="br">Unsourced variant: All of my life, I have been fascinated by the big questions that face us, and have tried to find scientific answers to them. Perhaps that is why I have sold more books on physics than Madonna has on sex. This quote seems to combine the above sentence from Stephen Hawking's Universe with a statement from the Foreword to The Illustrated Brief History of Time: As Nathan Myhrvold of Microsoft (a former post-doc of mine) remarked: I have sold more books on physics than Madonna has on sex.

“Although September 11 was horrible, it didn't threaten the survival of the human race, like nuclear weapons do.”

Stephen Hawking (1942–2018) British theoretical physicist, cosmologist, and author

Interview "Colonies in space may be only hope, says Hawking" by Roger Highfield in Daily Telegraph (16 October 2001) http://www.telegraph.co.uk/news/main.jhtml?xml=/news/2001/10/16/nhawk16.xml&sSheet=/news/2001/10/16/ixhome.html

“Mathematics is more than a tool and language for science. It is also an end in itself, and as such, it has, over the centuries, affected our worldview in its own right.”

Stephen Hawking book God Created the Integers

Preface
God Created the Integers (2007)