Niels Bohr

Physics Danish 1885 – 1962 768 quotes

Pioneer of quantum theory and atomic structure

Most quoted

"The fact that religions through the ages have spoken in images, parables, and paradoxes means simply that there are no other ways of grasping the reality to which they refer. But that does not mean that it is not a genuine reality. And complementarity, by the way, is not a new invention of mine. It is, in fact, as old as language itself. We have to be clear that when it comes to atoms, language can be used only as poetry. The poet, too, is not nearly so concerned with describing facts as with creating images and establishing connections."

— from Interview with Aage Petersen

"The fact that religions through the ages have spoken in images, parables, and paradoxes means simply that there are no other ways of grasping the reality to which they refer. But that does not mean that it is not a genuine reality. And the fact that this reality is not accessible to us in the same way as material reality makes it no less real."

— from Attributed

"The very nature of the quantum theory thus forces us to regard the space-time co-ordination and the claim of causality, the union of which characterizes the classical theories, as complementary but exclusive features of the description, symbolizing the idealization of observation and definition respectively."

— from Atomic Theory and the Description of Nature, 1929

All quotes by Niels Bohr (768)

Life is a journey of discovery.

Interview

Paradoxes are the beginning of deep understanding.

Philosophy

The atom bomb changed the world forever.

Letter to Einstein 1945

Science without religion is lame, religion without science is blind.

Reflection

Quantum entanglement defies space and time.

EPR paper discussion 1935

The meaning of life is to find your gift. The purpose is to give it away.

Aphorism

Innovation distinguishes between a leader and a follower.

Speech

The principles of quantum mechanics are universal.

Book 1928

Peace cannot be kept by force; it can only be achieved by understanding.

Speech 1950

The arts appeal to the imagination, science to reason.

Interview

A sense of humor is the pole that adds balance to our steps.

Aphorism

The frequency of light is related to energy by E = hν.

Model 1913

Reflection is the lamp of the heart.

Reflection

The open society is the foundation of progress.

Essay 1940

Curiosity is the engine of achievement.

Lecture

In the quantum world, particles are waves and waves are particles.

de Broglie influence 1924

The greatest enemy of knowledge is not ignorance, it is the illusion of knowledge.

Aphorism

Life's challenges build character.

Personal letter

The hydrogen atom is the simplest system to study.

Paper 1913

Humor helps us cope with the absurdities of life.

Anecdote