Werner Heisenberg Science Quotations

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

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.

Nature allows only experimental situations to occur which can be described within the framework of the formalism of quantum mechanics

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.

By getting to smaller and smaller units, we do not come to fundamental or indivisible units. But we do come to a point where further division has no meaning.

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