120 Quotes by Werner Heisenberg

Thus, the more precisely the position is determined, the less precisely the momentum is known, and conversely.

Looking at something changes it.

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

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.

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

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.

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

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.

Here the attention of the research workers is primarily directed to the problem of reconciling the claims of the special relativity theory with those of the quantum theory. The extraordinary advances made in this field by Dirac... leave open the question whether it will be possible to satisfy the claims of the two theories without at the same time determining the Sommerfeld fine-structure constant.