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Who said: “Nature does nothing in vain when less will serve; for Nature is pleased with simplicity and affects not the pomp of superfluous causes.”
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Home > Dictionary of Science Quotations > Scientist Names Index E > Albert Einstein Quotes > Idea

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Albert Einstein
(14 Mar 1879 - 18 Apr 1955)

German-American physicist who developed the special and general theories of relativity. He was awarded the 1921 Nobel Prize for Physics for his explanation of the photoelectric effect.



Development of Western science is based on two great achievements: the invention of the formal logical system (in Euclidean geometry) by the Greek philosophers, and the discovery of the possibility to find out causal relationships by systematic experiment (during the Renaissance). In my opinion, one has not to be astonished that the Chinese sages have not made these steps. The astonishing thing is that these discoveries were made at all.
— Albert Einstein
Letter to J. S. Switzer, 23 Apr 1953, Einstein Archive 61-381. Quoted in Alice Calaprice, The Quotable Einstein (1996), 180.
Science quotes on:  |  Cause (184)  |  Enquiry (74)  |  Logic (169)

I cannot seriously believe in it [quantum theory] because the theory cannot be reconciled with the idea that physics should represent a reality in time and space, free from spooky actions at a distance [spukhafte Fernwirkungen].
— Albert Einstein
Letter to Max Born (3 Mar 1947). In Born-Einstein Letters (1971), 158.
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I do not think words alone will solve humanity’s present problems. The sound of bombs drowns out men’s voices. In times of peace I have great faith in the communication of ideas among thinking men, but today, with brute force dominating so many millions of lives, I fear that the appeal to man’s intellect is fast becoming virtually meaningless.
— Albert Einstein
In 'I Am an American' (22 Jun 1940), Einstein Archives 29-092. Excerpted in David E. Rowe and Robert J. Schulmann, Einstein on Politics: His Private Thoughts and Public Stands on Nationalism, Zionism, War, Peace, and the Bomb (2007), 470. It was during a radio broadcast for the Immigration and Naturalization Service, interviewed by a State Department Official. Einstein spoke following an examination on his application for American citizenship in Trenton, New Jersey. The attack on Pearl Harbor and America’s declaration of war on Japan was still over a year in the future.
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Most of the fundamental ideas of science are essentially simple, and may, as a rule, be expressed in a language comprehensible to everyone.
Co-authored with Leopold Infeld.
— Albert Einstein
The Evolution of Physics: The Growth of Ideas from the Early Concepts to Relativity and Quanta (1938), 29. Infeld was a Polish physicist (1898-1968).
Science quotes on:  |  Theory (501)

No one must think that Newton’s great creation can be overthrown in any real sense by this [Theory of Relativity] or by any other theory. His clear and wide ideas will for ever retain their significance as the foundation on which our modern conceptions of physics have been built.
— Albert Einstein
In 'Time, Space, and Gravitation', The Times (28 Nov 1919). Excerpted in David E. Rowe and Robert J. Schulmann, Einstein on Politics: His Private Thoughts and Public Stands on Nationalism, Zionism, War, Peace, and the Bomb (2007), 104.
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Now it came to me: … the independence of the gravitational acceleration from the nature of the falling substance, may be expressed as follows: In a gravitational field (of small spatial extension) things behave as they do in a space free of gravitation. … This happened in 1908. Why were another seven years required for the construction of the general theory of relativity? The main reason lies in the fact that it is not so easy to free oneself from the idea that coordinates must have an immediate metrical meaning.
— Albert Einstein
In Paul Arthur Schilpp, 'Autobiographical Notes', Albert Einstein: Philosopher-Scientist (1949), 65-67.
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Our experience up to date justifies us in feeling sure that in Nature is actualized the ideal of mathematical simplicity. It is my conviction that pure mathematical construction enables us to discover the concepts and the laws connecting them, which gives us the key to understanding nature… In a certain sense, therefore, I hold it true that pure thought can grasp reality, as the ancients dreamed.
— Albert Einstein
In Herbert Spencer Lecture at Oxford (10 Jun 1933), 'On the Methods of Theoretical Physics'. Printed in Discovery (Jul 1933), 14, 227. Also quoted in Stefano Zambelli and ‎Donald A. R. George, Nonlinearity, Complexity and Randomness in Economics (2012).
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Our new idea is simple: to build a physics valid for all coordinate systems.
— Albert Einstein
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Physical concepts are free creations of the human mind, and are not, however it may seem, uniquely determined by the external world. In our endeavour to understand reality we are somewhat like a man trying to understand the mechanism of a closed watch. He sees the face and the moving hands, even hears its ticking, but he has no way of opening the case. If he is ingenious he may form some picture of a mechanism which could be responsible for all the things he observes, but he may never be quite sure his picture is the only one which could explain his observations. He will never be able to compare his picture with the real mechanism and he cannot even imagine the possibility or the meaning of such a comparison. But he certainly believes that, as his knowledge increases, his picture of reality will become simpler and simpler and will explain a wider and wider range of his sensuous impressions. He may also believe in the existence of the ideal limit of knowledge and that it is approached by the human mind. He may call this ideal limit the objective truth.
— Albert Einstein
Albert Einstein and Leopold Infeld, The Evolution of Physics (1938), 33.
Science quotes on:  |  Enquiry (74)

Pure mathematics is, in its way, the poetry of logical ideas. One seeks the most general ideas of operation which will bring together in simple, logical and unified form the largest possible circle of formal relationships. In this effort toward logical beauty spiritual formulas are discovered necessary for the deeper penetration into the laws of nature.
— Albert Einstein
In letter (1 May 1935), Letters to the Editor, 'The Late Emmy Noether: Professor Einstein Writes in Appreciation of a Fellow-Mathematician', New York Times (4 May 1935), 12.
Science quotes on:  |  Beauty (141)  |  Deep (37)  |  Discovery (522)  |  Formula (43)  |  Idea (367)  |  Law Of Nature (47)  |  Logic (169)  |  Necessity (111)  |  Penetration (12)  |  Poetry (85)  |  Pure Mathematics (26)  |  Seeking (30)  |  Spirit (83)

Scientific research is based on the idea that everything that takes place is determined by laws of nature, and therefore this holds for the actions of people. For this reason, a research scientist will hardly be inclined to believe that events could be influenced by a prayer, i.e. by a wish addressed to a supernatural Being.
However, it must be admitted that our actual knowledge of these laws is only imperfect and fragmentary, so that, actually, the belief in the existence of basic all-embracing laws in Nature also rests on a sort of faith. All the same this faith has been largely justified so far by the success of scientific research.
— Albert Einstein
Letter (24 Jan 1936) replying to a a letter (19 Jan 1936) asking if scientists pray, from a child in the sixth grade in a Sunday School in New York City. In Albert Einstein, Helen Dukas (ed.) and Banesh Hoffmann (ed.), Albert Einstein, The Human Side (1981), 32-33.
Science quotes on:  |  Research (435)  |  Science And Religion (239)

The cult of individual personalities is always, in my view, unjustified. To be sure, nature distributes her gifts variously among her children. But there are plenty of the well-endowed ones too, thank God, and I am firmly convinced that most of them live quiet, unregarded lives. It strikes me as unfair, and even in bad taste, to select a few of them for boundless admiration, attributing superhuman powers of mind and character to them. This has been my fate, and the contrast between the popular estimate of my powers and achievements and the reality is simply grotesque. The consciousness of this extraordinary state of affairs would be unbearable but for one great consoling thought: it is a welcome symptom in an age which is commonly denounced as materialistic, that it makes heroes of men whose ambitions lie wholly in the intellectual and moral sphere. This proves that knowledge and justice are ranked above wealth and power by a large section of the human race. My experience teaches me that this idealistic outlook is particularly prevalent in America, which is usually decried as a particularly materialistic country.
— Albert Einstein
The World As I See It (2006), 40.
Science quotes on:  |  Achievement (110)  |  Biography (213)  |  Mind (417)

The theoretical idea … does not arise apart from and independent of experience; nor can it be derived from experience by a purely logical procedure. It is produced by a creative act. Once a theoretical idea has been acquired, one does well to hold fast to it until it leads to an untenable conclusion.
— Albert Einstein
'On the Generalized Theory of Gravitation', Scientific American (Apr 1950). Collected in David H. Levy (ed.), The Scientific American Book of the Cosmos (2000), 14.
Science quotes on:  |  Conclusion (102)  |  Creativity (62)  |  Experience (204)  |  Hold (35)  |  Theory (501)  |  Untenable (2)

[An outsider views a scientist] as a type of unscrupulous opportunist: he appears as a realist, insofar as he seeks to describe the world independent of the act of perception; as idealist insofar as he looks upon the concepts and theories as the free inventions of the human spirit (not logically derivable from that which is empirically given); as positivist insofar as he considers his concepts and theories justified only to the extent to which they furnish a logical representation of relations among sense experiences. He may even appear as Platonist or Pythagorean insofar as he considers the viewpoint of logical simplicity as an indispensable and effective tool of his research.
— Albert Einstein
In 'Reply to Critcisms', Paul Arthur Schilpp (ed.), Albert Einstein: Philosopher-Scientist (1949, 1959), Vol. 2, 684.
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See also:
  • 14 Mar - short biography, births, deaths and events on date of Einstein's birth.
  • Albert Einstein - My Theory - The Times (1919).
  • Geometry and Experience - Address by Albert Einstein to the Prussian Academy of Sciences (27 Jan 1921).
  • Even Einstein's Little Universe Is Big Enough - New York Times article (2 Feb 1921).
  • Large color picture of Albert Einstein (850 x 1000 px).
  • Albert Einstein - Context of “God … integrates empirically” quote - Medium image (500 x 350 px)
  • Albert Einstein - Context of “Laws of mathematics refer to reality” quote
  • Albert Einstein - Context of “Laws of mathematics refer to reality” quote - with Large image (800 x 600 px).
  • Albert Einstein - Context of “God … integrates empirically” quote - Large image (800 x 600 px)
  • Albert Einstein - context of quote Mathematics…a product of human thought - Medium image (500 x 350 px)
  • Albert Einstein - context of quote Mathematics…a product of human thought - Large image (800 x 600 px)
  • Albert Einstein - context of quote “Politics is more difficult than physics” - Medium image (500 x 350 px)
  • Albert Einstein - context of quote “Politics is more difficult than physics” - Large image (800 x 600 px)
  • Albert Einstein - context of quote “Science without religion is lame; religion without science is blind.” - Medium image (500 x 350 px)
  • Albert Einstein - context of quote “Science without religion is lame; religion without science is blind.” - Large image (800 x 600 px)
  • Albert Einstein - context of quote The Lord God is subtle - Medium image (500 x 350 px)
  • Albert Einstein - context of quote The Lord God is subtle - Large image (800 x 600 px)
  • Albert Einstein - context of quote Imagination is more important than knowledge - Medium image (500 x 350 px)
  • Albert Einstein - context of quote Imagination is more important than knowledge - Large image (800 x 600 px)
  • Albert Einstein - context of quote A theory can be proved by experiment - Medium image (500 x 350 px)
  • Albert Einstein - context of quote A theory can be proved by experiment - Large image (800 x 600 px)
  • Albert Einstein - context of quote Falling in love is not at all the most stupid thing - Medium image (500 x 350 px)
  • Albert Einstein - context of quote Falling in love is not at all the most stupid thing - Large image (800 x 600 px)
  • Albert Einstein - context of quote That is relativity - Medium image (500 x 350 px)
  • Albert Einstein - context of quote That is relativity - Large image (800 x 600 px)
  • Albert Einstein - context of quote “One thing I have learned in a long life” - Medium image (500 x 350 px)
  • Albert Einstein - context of quote One thing I have learned in a long life - Large image (800 x 600 px)
  • Albert Einstein - context of quote “Why is the electron negative?” - Medium image (500 x 350 px)
  • Albert Einstein - context of quote “Why is the electron negative?” - Large image (800 x 600 px)
  • Albert Einstein - context of quote “The formulation of a problem is often far more essential than its solution” - Medium image (500 x 350 px)
  • Albert Einstein - context of quote “The formulation of a problem is often far more essential than its solution” - Large image (800 x 600 px)
  • Albert Einstein - context of quote “Our exalted technological progress” - Medium image (500 x 350 px)
  • Albert Einstein - context of quote “Our exalted technological progress” - Large image (800 x 600 px)
  • Albert Einstein - context of quote “There exists a passion for comprehension” - Medium image (500 x 350 px)
  • Albert Einstein - context of quote “There exists a passion for comprehension” - Large image (800 x 600 px)
  • Albert Einstein - context of quote “An equation is for eternity” - Medium image (500 x 350 px)
  • Albert Einstein - context of quote “An equation is for eternity” - Large image (800 x 600 px)
  • Subtle Is the Lord: The Science and the Life of Albert Einstein, by Abraham Pais. - book suggestion.
  • Booklist for Albert Einstein.

Carl Sagan Thumbnail In science it often happens that scientists say, 'You know that's a really good argument; my position is mistaken,' and then they would actually change their minds and you never hear that old view from them again. They really do it. It doesn't happen as often as it should, because scientists are human and change is sometimes painful. But it happens every day. I cannot recall the last time something like that happened in politics or religion. (1987) -- Carl Sagan
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