Werner Heisenberg

The development of quantum theory has shown us that there are limits to what we can know about the physical world.

The ultimate goal of physics is not to describe the world, but to understand it.

The idea of a 'classical' world, where everything is determined, is an illusion.

The atomic nucleus is a very complicated system, and we are still far from understanding it completely.

The role of the observer in quantum mechanics is not to create reality, but to select from a range of possibilities.

The most important discovery of the 20th century was the discovery of the quantum.

The development of quantum mechanics has opened up entirely new possibilities for understanding the universe.

The future of physics lies in the exploration of the very small and the very large.

The concept of 'truth' in science is not absolute, but relative to our current understanding.

The most profound insights in science often come from unexpected directions.

The atomic world is a world of probabilities, not certainties.

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.

An expert is someone who knows some of the worst mistakes that can be made in his field and how to avoid them.

The atomic bomb was a great achievement, but it was also a great tragedy.

One cannot be a physicist without being a bit of a philosopher.

The only way to do great work is to love what you do.

The more I learn, the more I realize how much I don't know.

The world is not a collection of objects, but a web of relations.

The best way to predict the future is to create it.

Every great idea is a blasphemy at first.