What we observe is not nature itself, but nature exposed to our method of questioning.
Interpretation
This quote emphasizes that our understanding of nature is shaped by the questions we ask and how we investigate it.
Heisenberg suggests that our perceptions of the natural world are not direct reflections of reality but are instead influenced by our inquiries and the frameworks we use to interpret observations. The statement implies that knowledge is not just about passive observation; rather, it is an active process that depends heavily on human curiosity and the methodologies employed in scientific exploration.
In practice
In a lecture on scientific methodology, one could use this quote to illustrate the importance of asking the right questions in research.
Although the theory of relativity makes the greatest of demands on the ability for abstract thought, still it fulfills the traditional requirements of science insofar as it permits a division of the world into subject and object (observer and observed) and, hence, a clear formulation of the law of causality.
It was about three o'clock at night when the final result of the calculation [which gave birth to quantum mechanics] lay before me ... At first I was deeply shaken ... I was so excited that I could not think of sleep. So I left the house ... and awaited the sunrise on top of a rock.
It is generally believed that our science is empirical and that we draw our concepts and our mathematical constructs from the empirical data. If this were the whole truth, we should, when entering into a new field, introduce only such quantities as can directly be observed, and formulate natural laws only by means of these quantities.
When I meet God, I am going to ask him two questions: Why relativity ? And why turbulence ? I really believe he will have an answer for the first.
The end of the First World War had thrown Germany's youth into great turmoil. The reins of power had fallen from the hands of a deeply disillusioned older generation, and the younger ones drew together in larger and smaller groups to blaze new paths or, at least, to discover a new star to steer by.
The Same organizing forces that have shaped nature in all her forms are also responsible for the structure of our minds.
While we have prisons it matters little which of us occupy the cells.
But what is quackery? It is commonly an attempt to cure the diseases of a man by addressing his body alone. There is need of a physician who shall minister to both soul and body at once, that is, to man. Now he falls between two stools.
He used this great, sad, motionless face to suggest various related things: a one-track mind near the track's end of pure insanity; mulish imperturbability under the wildest of circumstances; how dead a human being can get and still be alive . . .
Glory paid to our ashes comes too late.
I think of the security of cages. How violence, cruelty, oppression, become a kind of home, a familiar pattern, a cage, in which we know how to operate and define ourselves.
Fear drives the wretched to prayer
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