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| 21 of 21 results found for - "Richard P. Feynman" | [Quote No.34627] Need Area: Mind > Learn
"[Skepticism:] The test of all knowledge is experiment." - Richard P. Feynman
theoretical physicist
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| [Quote No.37176] Need Area: Mind > Learn
"Explore the world. Nearly everything is really interesting if you go into it deeply enough." - Richard P. Feynman
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| [Quote No.50078] Need Area: Mind > Learn
"[Question, doubt and remain justifiably skeptical:]
The scientist has a lot of experience with ignorance and doubt and uncertainty, and this experience is of very great importance, I think. When a scientist doesn’t know the answer to a problem, he is ignorant. When he has a hunch as to what the result is, he is uncertain. And when he is pretty darn sure of what the result is going to be, he is in some doubt. We have found it of paramount importance that in order to progress we must recognize the ignorance and leave room for doubt. Scientific knowledge is a body of statements of varying degrees of certainty – some most unsure, some nearly sure, none absolutely certain. ...
Now, we scientists ... take it for granted that it is perfectly consistent to be unsure - that it is possible to live and not know. But I don’t know whether everyone realizes that this is true. Our freedom to doubt was born of a struggle against authority in the early days of science. It was a very deep and strong struggle. Permit us to question - to doubt, that’s all - not to be sure. And I think it is important that we do not forget the importance of this struggle and thus perhaps lose what we have gained. Here lies a responsibility to society. ...
to teach how doubt is not to be feared but welcomed and discussed, and to demand this freedom as our duty to all coming generations." - Richard P. Feynman
Famous American theoretical physicist, scientist, teacher, raconteur, and musician. Quoted from the book, 'The Pleasure of Finding Things Out: The Best Short Works of Richard P. Feynman'.
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| [Quote No.65037] Need Area: Mind > Learn
"We are at the very beginning of time for the human race. It is not unreasonable that we grapple with problems. But there are tens of thousands of years in the future. Our responsibility is to do what we can, learn what we can, improve the solutions, and pass them on!" - Richard P. Feynman
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| [Quote No.68926] Need Area: Mind > Learn
"The principle of science, the definition, almost, is the following: The test of all knowledge is experiment. Experiment is the sole judge of scientific 'truth.' But what is the source of knowledge? Where do the laws that are to be tested come from? Experiment, itself, helps to produce these laws, in the sense that it gives us hints. But also needed is imagination to create from these hints the great generalizations--to guess at the wonderful, simple, but very strange patterns beneath them all, and then to experiment to check again whether we have made the right guess." - Richard P. Feynman
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| [Quote No.68929] Need Area: Mind > Learn
"Study hard what interests you the most in the most undisciplined, irreverent and original manner possible.
" - Richard P. Feynman
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| [Quote No.68931] Need Area: Mind > Learn
"We need to teach how doubt is not to be feared but welcomed. It's OK to say, 'I don't know.'
" - Richard P. Feynman
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| [Quote No.68932] Need Area: Mind > Learn
"If we want to solve a problem that we have never solved before, we must leave the door to the unknown ajar.
" - Richard P. Feynman
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| [Quote No.68933] Need Area: Mind > Learn
"It is our responsibility as scientists, knowing the great progress which comes from a satisfactory philosophy of ignorance [humility, justifiable skepticism, uncertainty and doubt], the great progress which is the fruit of freedom of thought, to proclaim the value of this freedom; to teach how doubt is not to be feared but welcomed and discussed; and to demand this freedom as our duty to all coming generations." - Richard P. Feynman
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| [Quote No.68934] Need Area: Mind > Learn
"When a scientist doesn't know the answer to a problem, he is ignorant. When he has a hunch as to what the result is, he is uncertain. And when he is pretty darn sure of what the result is going to be, he is still in some doubt. We have found it of paramount importance that in order to progress we must recognize our ignorance and leave room for doubt. Scientific knowledge is a body of statements of varying degrees of certainty - some most unsure, some nearly sure, but none absolutely certain." - Richard P. Feynman
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| [Quote No.68935] Need Area: Mind > Learn
"We are trying to prove ourselves wrong as quickly as possible, because only in that way can we find progress.
" - Richard P. Feynman
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| [Quote No.68936] Need Area: Mind > Learn
"Progress in science comes when experiments contradict theory.
" - Richard P. Feynman
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| [Quote No.68937] Need Area: Mind > Learn
"There is no harm in [justifiable] doubt and skepticism, for it is through these that new discoveries are made.
" - Richard P. Feynman
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| [Quote No.68967] Need Area: Mind > Learn
"Science is the belief in the ignorance of experts [and authorities and therefore the need for humility, doubt and proof]." - Richard P. Feynman
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| [Quote No.68968] Need Area: Mind > Learn
"[In the search for objective truth, truth that can set you free and empower you, it is helpful to try to consider all the options and alternatives and all their pros and cons:] There is one feature I notice that is generally missing in cargo cult science. ... It's a kind of scientific integrity, a principle of scientific thought that corresponds to a kind of utter honesty — a kind of leaning over backwards. For example, if you're doing an experiment, you should report everything that you think might make it invalid — not only what you think is right about it; other causes that could possibly explain your results; and things you thought of that you've eliminated by some other experiment, and how they worked — to make sure the other fellow can tell they have been eliminated.
Details that could throw doubt on your interpretation must be given, if you know them. You must do the best you can — if you know anything at all wrong, or possibly wrong — to explain it. If you make a theory, for example, and advertise it, or put it out, then you must also put down all the facts that disagree with it, as well as those that agree with it. There is also a more subtle problem. When you have put a lot of ideas together to make an elaborate theory, you want to make sure, when explaining what it fits, that those things it fits are not just the things that gave you the idea for the theory; but that the finished theory makes something else come out right, in addition.
In summary, the idea is to try to give all of the information to help others to judge the value of your contribution; not just the information that leads to judgement in one particular direction or another. [This is consistent with morality and ethics, in that you are helping to create the foundational freedom in wise social contracts for living and working together, namely peaceful, voluntary, honest, informed choice through freedom from any type of force or fraud, deliberate or accidental, explicit or implicit.]" - Richard P. Feynman
'Cargo Cult Science', adapted from a 1974 Caltech commencement address; also published in the book, 'Surely You're Joking, Mr. Feynman!', p. 341.
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| [Quote No.68969] Need Area: Mind > Learn
"We are at the very beginning of time for the human race. It is not unreasonable that we grapple with problems. But there are tens of thousands of years in the future. Our responsibility is to do what we can, learn what we can, improve the solutions, and pass them on.
...It is our responsibility to leave the people of the future a free hand. In the impetuous youth of humanity, we can make grave errors that can stunt our growth for a long time. This we will do if we say we have the answers now, so young and ignorant as we are. If we suppress all discussion, all criticism, proclaiming 'This is the answer, my friends; man is saved!' we will doom humanity for a long time to the chains of authority, confined to the limits of our present imagination. It has been done so many times before.
...It is our responsibility as scientists, knowing the great progress which comes from a satisfactory philosophy of ignorance, the great progress which is the fruit of freedom of thought, to proclaim the value of this freedom; to teach how doubt is not to be feared but welcomed and discussed; and to demand this freedom as our duty to all coming generations." - Richard P. Feynman
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| [Quote No.68970] Need Area: Mind > Learn
"Of course if we make good things, it is not only to the credit of science; it is also to the credit of the moral choice which led us to good work. Scientific knowledge is an enabling power to do either good or bad — but it does not carry instructions on how to use it. Such power has evident value — even though the power may be negated by what one does with it.
I learned a way of expressing this common human problem on a trip to Honolulu. In a Buddhist temple there, the man in charge explained a little bit about the Buddhist religion for tourists, and then ended his talk by telling them he had something to say to them that they would never forget — and I have never forgotten it. It was a proverb of the Buddhist religion:
To every man is given the key to the gates of heaven; the same key opens the gates of hell.
What then, is the value of the key to heaven? It is true that if we lack clear instructions that enable us to determine which is the gate to heaven and which the gate to hell, the key may be a dangerous object to use.
But the key obviously has value: how can we enter heaven without it?" - Richard P. Feynman
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| [Quote No.68927] Need Area: Mind > Imagine
"It is surprising that people do not believe that there is imagination in science. It is a very interesting kind of imagination, unlike that of the artist. The great difficulty is in trying to imagine something that you have never seen, that is consistent in every detail with what has already been seen, and that is different from what has been thought of; furthermore, it must be definite and not a vague proposition. That is indeed difficult." - Richard P. Feynman
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| [Quote No.65036] Need Area: Mind > General
"We are at the very beginning of time for the human race. It is not unreasonable that we grapple with problems. But there are tens of thousands of years in the future. Our responsibility is to do what we can, learn what we can, improve the solutions, and pass them on." - Richard P. Feynman
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| [Quote No.68928] Need Area: Property > Garden/Nature
"[The Earth is in the the solar system with our star, the sun, which is in the Milky Way galaxy.] There are 10^11 stars in the [Milky Way] galaxy. That used to be a huge number. But it's only a hundred billion. It's less than the [US] national deficit! We used to call them astronomical numbers. Now we should call them economical numbers. [Since there are 10^11-13 galaxies in the observable universe, that means there are some 10^22-24 stars or about 10,000 stars for every grain of sand on Earth! Now that helps us understand what astronomical means. Something else that helps us understand astronomical is the fact that light from our sun takes about 8 minutes - at around 300,000 km/second - to cross the slightly more than 150 million km to reach the Earth and yet sunlight travelling at that same speed - which is the maximum speed anything besides space-time can travel at - would take about 47 billion years to cross the observable universe (even though the universe is just under 13.8 billion years old)!]" - Richard P. Feynman
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| [Quote No.68930] Need Area: Friends > Children
"Study hard what interests you the most in the most undisciplined, irreverent and original manner possible!
" - Richard P. Feynman
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