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Henri Poincare Quotes

The mind uses its faculty for creativity only when experience forces it to do so Picture Quote #1

Science is facts Picture Quote #1

It is through science that we prove, but through intuition that we discover Picture Quote #1

But for harmony beautiful to contemplate, science would not be worth following Picture Quote #1

Thought is only a flash between two long nights, but this flash is everything Picture Quote #1

Point set topology is a disease from which the human race will soon recover Picture Quote #1

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A small error in the former will produce an enormous error in the latter Picture Quote #1

It is far better to foresee even without certainty than not to foresee at all Picture Quote #1

If we ought not to fear mortal truth, still less should we dread scientific truth. In the first place it can not conflict with ethics? But if science is feared, it is above all because it can give no happiness? Man, then, can not be happy through science but today he can much less be happy without it Picture Quote #1

What is a good definition? For the philosopher or the scientist, it is a definition which applies to all the objects to be defined, and applies only to them; it is that which satisfies the rules of logic. But in education it is not that; it is one that can be understood by the pupils Picture Quote #1

How is it that there are so many minds that are incapable of understanding mathematics?... the skeleton of our understanding,... and actually they are the majority... We have here a problem that is not easy of solution, but yet must engage the attention of all who wish to devote themselves to education Picture Quote #1

All the scientist creates in a fact is the language in which he enunciates it. If he predicts a fact, he will employ this language, and for all those who can speak and understand it, his prediction is free from ambiguity. Moreover, this prediction once made, it evidently does not depend upon him whether it is fulfilled or not Picture Quote #1

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When the logician has resolved each demonstration into a host of elementary operations, all of them correct, he will not yet be in possession of the whole reality, that indefinable something that constitutes the unity... Now pure logic cannot give us this view of the whole; it is to intuition that we must look for it Picture Quote #1

It is often said that experiments should be made without preconceived ideas. That is impossible. Not only would it make every experiment fruitless, but even if we wished to do so, it could not be done. Every man has his own conception of the world, and this he cannot so easily lay aside. We must, example, use language, and our language is necessarily steeped in preconceived ideas. Only they are unconscious preconceived ideas, which are a thousand times the most dangerous of all Picture Quote #1

It is a misfortune for a science to be born too late when the means of observation have become too perfect. That is what is happening at this moment with respect to physical chemistry; the founders are hampered in their general grasp by third and fourth decimal places Picture Quote #1

All that we can hope from these inspirations, which are the fruits of unconscious work, is to obtain points of departure for such calculations. As for the calculations themselves, they must be made in the second period of conscious work which follows the inspiration, and in which the results of the inspiration are verified and the consequences deduced.? Picture Quote #1

A very small cause, which escapes us, determines a considerable effect which we cannot ignore, and we say that this effect is due to chance Picture Quote #1

Einstein does not remain attached to the classical principles, and when presented with a problem in physics he quickly envisages all of its possibilities. This leads immediately in his mind to the prediction of new phenomena which may one day be verified by experiment Picture Quote #1

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Astronomy is useful because it raises us above ourselves; it is useful because it is grand;... It shows us how small is man’s body, how great his mind, since his intelligence can embrace the whole of this dazzling immensity, where his body is only an obscure point, and enjoy its silent harmony Picture Quote #1

Thought is only a gleam in the midst of a long night. But it is this gleam which is everything Picture Quote #1

A very small cause which escapes our notice determines a considerable effect that we cannot fail to see, and then we say that the effect is due to chance Picture Quote #1

If that enabled us to predict the succeeding situation with the same approximation, that is all we require, and we should say that the phenomenon had been predicted, that it is governed by the laws Picture Quote #1

Invention consists in avoiding the constructing of useless contraptions and in constructing the useful combinations which are in infinite minority. To invent is to discern, to choose Picture Quote #1

It has adopted the geometry most advantageous to the species or, in other words, the most convenient Picture Quote #1

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Science is built of facts the way a house is built of bricks; but an accumulation of facts is no more science than a pile of bricks is a house Picture Quote #1

To doubt everything, or, to believe everything, are two equally convenient solutions; both dispense with the necessity of reflection Picture Quote #1

Science is facts; just as houses are made of stones, so is science made of facts; but a pile of stones is not a house and a collection of facts is not necessarily science Picture Quote #1

The scientist does not study nature because it is useful; he studies it because he delights in it, and he delights in it because it is beautiful Picture Quote #1

Why is it that showers and even storms seem to come by chance, so that many people think it quite natural to pray for rain or fine weather, though they would consider it ridiculous to ask for an eclipse by prayer Picture Quote #1

We also know how cruel the truth often is, and we wonder whether delusion is not more consoling Picture Quote #1

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The mind uses its faculty for creativity only when experience forces it to do so (Henri Poincare Quotes) Science is facts (Henri Poincare Quotes) It is through science that we prove, but through intuition that we discover (Henri Poincare Quotes) But for harmony beautiful to contemplate, science would not be worth following (Henri Poincare Quotes) Thought is only a flash between two long nights, but this flash is everything (Henri Poincare Quotes) Point set topology is a disease from which the human race will soon recover (Henri Poincare Quotes) A small error in the former will produce an enormous error in the latter (Henri Poincare Quotes) It is far better to foresee even without certainty than not to foresee at all (Henri Poincare Quotes) If we ought not to fear mortal truth, still less should we dread scientific truth. In the first place it can not conflict with ethics? But if science is feared, it is above all because it can give no happiness? Man, then, can not be happy through science but today he can much less be happy without it (Henri Poincare Quotes) What is a good definition? For the philosopher or the scientist, it is a definition which applies to all the objects to be defined, and applies only to them; it is that which satisfies the rules of logic. But in education it is not that; it is one that can be understood by the pupils (Henri Poincare Quotes) How is it that there are so many minds that are incapable of understanding mathematics?... the skeleton of our understanding,... and actually they are the majority... We have here a problem that is not easy of solution, but yet must engage the attention of all who wish to devote themselves to education (Henri Poincare Quotes) All the scientist creates in a fact is the language in which he enunciates it. If he predicts a fact, he will employ this language, and for all those who can speak and understand it, his prediction is free from ambiguity. Moreover, this prediction once made, it evidently does not depend upon him whether it is fulfilled or not (Henri Poincare Quotes) When the logician has resolved each demonstration into a host of elementary operations, all of them correct, he will not yet be in possession of the whole reality, that indefinable something that constitutes the unity... Now pure logic cannot give us this view of the whole; it is to intuition that we must look for it (Henri Poincare Quotes) It is often said that experiments should be made without preconceived ideas. That is impossible. Not only would it make every experiment fruitless, but even if we wished to do so, it could not be done. Every man has his own conception of the world, and this he cannot so easily lay aside. We must, example, use language, and our language is necessarily steeped in preconceived ideas. Only they are unconscious preconceived ideas, which are a thousand times the most dangerous of all (Henri Poincare Quotes) It is a misfortune for a science to be born too late when the means of observation have become too perfect. That is what is happening at this moment with respect to physical chemistry; the founders are hampered in their general grasp by third and fourth decimal places (Henri Poincare Quotes) All that we can hope from these inspirations, which are the fruits of unconscious work, is to obtain points of departure for such calculations. As for the calculations themselves, they must be made in the second period of conscious work which follows the inspiration, and in which the results of the inspiration are verified and the consequences deduced.? (Henri Poincare Quotes) A very small cause, which escapes us, determines a considerable effect which we cannot ignore, and we say that this effect is due to chance (Henri Poincare Quotes) Einstein does not remain attached to the classical principles, and when presented with a problem in physics he quickly envisages all of its possibilities. This leads immediately in his mind to the prediction of new phenomena which may one day be verified by experiment (Henri Poincare Quotes) Astronomy is useful because it raises us above ourselves; it is useful because it is grand;... It shows us how small is man’s body, how great his mind, since his intelligence can embrace the whole of this dazzling immensity, where his body is only an obscure point, and enjoy its silent harmony (Henri Poincare Quotes) Thought is only a gleam in the midst of a long night. But it is this gleam which is everything (Henri Poincare Quotes) A very small cause which escapes our notice determines a considerable effect that we cannot fail to see, and then we say that the effect is due to chance (Henri Poincare Quotes) If that enabled us to predict the succeeding situation with the same approximation, that is all we require, and we should say that the phenomenon had been predicted, that it is governed by the laws (Henri Poincare Quotes) Invention consists in avoiding the constructing of useless contraptions and in constructing the useful combinations which are in infinite minority. To invent is to discern, to choose (Henri Poincare Quotes) It has adopted the geometry most advantageous to the species or, in other words, the most convenient (Henri Poincare Quotes) Science is built of facts the way a house is built of bricks; but an accumulation of facts is no more science than a pile of bricks is a house (Henri Poincare Quotes) To doubt everything, or, to believe everything, are two equally convenient solutions; both dispense with the necessity of reflection (Henri Poincare Quotes) Science is facts; just as houses are made of stones, so is science made of facts; but a pile of stones is not a house and a collection of facts is not necessarily science (Henri Poincare Quotes) The scientist does not study nature because it is useful; he studies it because he delights in it, and he delights in it because it is beautiful (Henri Poincare Quotes) Why is it that showers and even storms seem to come by chance, so that many people think it quite natural to pray for rain or fine weather, though they would consider it ridiculous to ask for an eclipse by prayer (Henri Poincare Quotes) We also know how cruel the truth often is, and we wonder whether delusion is not more consoling (Henri Poincare Quotes)

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