The ‘path’ comes into existence only when we observe it. — Werner Heisenberg

What happens depends on our way of observing it or on the fact that we observe it. — Werner Heisenberg

We have to remember that what We observe is not nature in itself but nature exposed to our method of questioning. — Werner Heisenberg

I believe that the existence of the classical ‘path’ can be pregnantly formulated as follows: The ‘path’ comes into existence only when we observe it. — Werner Heisenberg

Separation of the observer from the phenomenon to be observed is no longer possible. — Werner Heisenberg

Revere those things beyond science which really matter and about which it is so difficult to speak. — Werner Heisenberg

Natural science, does not simply describe and explain nature; it is part of the interplay between nature and ourselves. — Werner Heisenberg

The first gulp from the glass of natural sciences will turn you into an atheist, but at the bottom of the glass God is waiting for you. — Werner Heisenberg

Science clears the fields on which technology can build. — Werner Heisenberg

T]he atoms or elementary particles themselves are not real; they form a world of potentialities or possibilities rather than one of things or facts. — Werner Heisenberg

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

In classical physics, science started from the belief–or should one say, from the illusion?–that we could describe the world, or least parts of the world, without any reference to ourselves. — Werner Heisenberg

If we made atomic bombs, we would bring about a terrible change in the world. Who knows what would happen from this? — Werner Heisenberg

Not only is the Universe stranger than we think, it is stranger than we can think. — Werner Heisenberg

Bohr’s influence on the physics and the physicists of our century was stronger than that of anyone else, even than that of Albert Einstein. — Werner Heisenberg

I think that the discovery of antimatter was perhaps the biggest jump of all the big jumps in physics in our century. — Werner Heisenberg

A consistent pursuit of classical physics forces a transformation in the very heart of that physics. — Werner Heisenberg

After the conversations about Indian philosophy, some of the ideas of Quantum Physics that had seemed so crazy suddenly made much more sense. — Werner Heisenberg

I had imagined doing nuclear physics and cosmic ray work in greater style in peace time. To do modern physics in a small way is of no use of all. — Werner Heisenberg

The more closely you look at one thing, the less closely can you see something else. — Werner Heisenberg

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

There is a fundamental error in separating the parts from the whole, the mistake of atomizing what should not be atomized. Unity and complementarity constitute reality. — Werner Heisenberg

The reality we can put into words is never reality itself. — Werner Heisenberg

The existing scientific concepts cover always only a very limited part of reality, and the other part that has not yet been understood is infinite. — Werner Heisenberg

The conception of objective reality … has thus evaporated … into the transparent clarity of mathematics that represents no longer the behavior of particles but rather our knowledge of this behavior. — Werner Heisenberg

Only a few know, how much one must know to know how little one knows. — Werner Heisenberg