Heisenberg, Werner

"The possibility of knowledge has fundamentally changed with the quantum theory."

"War will exist as long as there is a state system."

"Education is not the filling of a pail, but the lighting of a fire."

"The real problem is that languages are not precise enough to describe quantum events."

"Leadership in science must come from those who understand the limits of science."

"Nature will not accommodate itself to human wishful thinking."

"The complementarity principle is the heart of quantum mechanics."

"Real courage is when you know you're licked before you begin, but you begin anyway."

"The scientist's task is not to impose his will on nature, but to listen to it."

"What we call the history of science is a record of how our understanding of the world has improved."

"Atoms are a way of organizing experience."

"The development of physics in our century can be seen as a continuous retreat from the naive realism of the nineteenth century."

"I am inclined to define matter as that which causes consciousness."

"The universe does not behave according to our pre-conceived notions. We must let nature tell us how it behaves."

"Mathematical symbols are written conveniences for the theory of quantum mechanics."

"The danger of the present time is that the different parts of knowledge are isolated from each other."

"What we can say about nature depends on the language we use."

"The growth of science is the discovery of human ignorance."

"In quantum mechanics, the observer is not independent of the system being observed."

"If I understand quantum mechanics correctly, nature is fundamentally indeterminate."

"The future belongs to those who believe in the beauty of their dreams."

"The electron is inexhaustible in the properties it manifests."

"One should as a principle respect the opinion of others, even if it is contrary to one's own belief."

"The split between the observer and the observed is a product of human consciousness."

"The basic concepts of physics are idealizations from experience."

"What nature permits in the atomic world, the law forbids in the social world."

"The task of science is to understand nature, not to change it according to our will."

"Confusion is the first step toward understanding."

"The possibilities offered by nature are infinitely varied in their manifestations."

"Mathematical beauty is one guide to the truth in physics."