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What we observe is not nature itself, but nature exposed to our method of questioning.

Werner Heisenberg

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Werner Heisenberg
Age: 74 †
Born: 1901
Born: December 5
Died: 1976
Died: February 1
Academic
Mathematician
Mountaineer
Non-Fiction Writer
Nuclear Physicist
Physicist
Theoretical Physicist
University Teacher
Kreisfreie Stadt Würzburg
Werner Karl Heisenberg
Heisenberg
Werner K. Heisenberg
Exposed
Perception
Method
Science
Nature
Questioning
Observe

More quotes by Werner Heisenberg

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...separation of the observer from the phenomenon to be observed is no longer possible.
Werner Heisenberg
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Nature allows only experimental situations to occur which can be described within the framework of the formalism of quantum mechanics
Werner Heisenberg
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In my paper the fact the XY was not equal to YX was very disagreeable to me. I felt this was the only point of difficulty in the whole scheme...and I was not able to solve it.
Werner Heisenberg
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Thus, the more precisely the position is determined, the less precisely the momentum is known, and conversely.
Werner Heisenberg
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The world thus appears as a complicated tissue of events, in which connections of different kinds alternate or overlap or combine and thereby determine the texture of the whole.
Werner Heisenberg
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Science no longer is in the position of observer of nature, but rather recognizes itself as part of the interplay between man and nature. The scientific method ... changes and transforms its object: the procedure can no longer keep its distance from the object.
Werner Heisenberg
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I think that modern physics has definitely decided in favor of Plato. In fact the smallest units of matter are not physical objects in the ordinary sense they are forms, ideas which can be expressed unambiguously only in mathematical language.
Werner Heisenberg
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In the strict formulation of the law of causality—if we know the present, we can calculate the future—it is not the conclusion that is wrong but the premise. On an implication of the uncertainty principle.
Werner Heisenberg
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The reality we can put into words is never reality itself.
Werner Heisenberg
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The discontinuous 'reduction of the wave packets' which cannot be derived from Schroedinger's equation is ... a consequence of the transition from the possible to the actual.
Werner Heisenberg
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Where no guiding ideals are left to point the way, the scale of values disappears and with it the meaning of our deeds and sufferings, and at the end can lie only negation and despair. Religion is therefore the foundation of ethics, and ethics the presupposition of life.
Werner Heisenberg
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The solution of the difficulty is that the two mental pictures which experiment lead us to form - the one of the particles, the other of the waves - are both incomplete and have only the validity of analogies which are accurate only in limiting cases.
Werner Heisenberg
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The very act of observing disturbs the system.
Werner Heisenberg
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Uncertainty is NOT I don't know. It is I can't know. I am uncertain does not mean I could be certain.
Werner Heisenberg
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It is probably true quite generally that in the history of human thinking the most fruitful developments frequently take place at those points where two different lines of thought meet.
Werner Heisenberg
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Unless you stake your life, life will not be won.
Werner Heisenberg
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The more closely you look at one thing, the less closely can you see something else.
Werner Heisenberg
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Both matter and radiation possess a remarkable duality of character, as they sometimes exhibit the properties of waves, at other times those of particles. Now it is obvious that a thing cannot be a form of wave motion and composed of particles at the same time - the two concepts are too different
Werner Heisenberg
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Many people will tell you that an expert is someone who knows a great deal about the subject. To this I would object that one can never know much about any subject. I would much prefer the following definition: an expert is someone who knows some of the worst mistakes that can be made in the subject, and how to avoid them.
Werner Heisenberg
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The structure underlying the phenomena is not given by material objects like the atoms of Democritus but by the form that determines the material objects. The Ideas are more fundamental than the objects.
Werner Heisenberg