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An expert is a man who has made all the mistakes which can be made, in a narrow field.

Niels Bohr

Of course I don’t believe in it pointing to horseshoe on his office wall. But I understand that it brings you luck whether you believe in it or not.
NIELS BOHR

Believe Faith Understand Wall Yourself
It is a great pity that human beings cannot find all of their satisfaction in scientific contemplativeness.
NIELS BOHR

Greatness Human Satisfaction Science
Nothing exists until it is measured.
NIELS BOHR

Existence One Liner
One must always do what one really cannot.
NIELS BOHR

Inspirational Oneself
Every sentence I utter must be understood not as an affirmation, but as a question.
NIELS BOHR

Myself Science Understand
It is wrong to think that the task of physics is to find out how nature is. Physics concerns what we say about nature.
NIELS BOHR

Learning Nature Theory Thinking Wrong
If you have a correct statement, then the opposite of a correct statement is of course an incorrect statement, a wrong statement. But when you have a deep truth, then the opposite of a deep truth may again be a deep truth.
NIELS BOHR

Philosophy Truth Wisdom Wrong Yourself
Prediction is very difficult, especially if it’s about the future.
NIELS BOHR

Difficult Future Time
There is no hope for any speculation that does not look absurd at first glance.
NIELS BOHR

Appearance Hope Mad
If you aren’t confused by quantum mechanics, you haven’t really understood it.
NIELS BOHR

Understand Yourself
Truth is something that we can attempt to doubt, and then perhaps, after much exertion, discover that part of the doubt is not justified.
NIELS BOHR

Discovery Doubt Justice Science Truth
The opposite of a fact is falsehood, but the opposite of one profound truth may very well be another profound truth.
NIELS BOHR

Fake Science Truth Wisdom
We are all agreed that your theory is crazy. The question which divides us is whether it is crazy enough to have a chance of being correct. My own feeling is that it is not crazy enough.
NIELS BOHR

Crazy Enough Feeling Theory
Oh what idiots we have all been, this is just as it must be.
NIELS BOHR

Idiot Spiritual
And anyone who thinks they can talk about quantum theory without feeling dizzy hasn’t yet understood the first thing about it.
NIELS BOHR

Feeling Talk Theory Thinking Understand
The opposite of every great idea is another great idea.
NIELS BOHR

Greatness Ideas One Liner
If an idea does not appear bizarre, there is no hope for it.
NIELS BOHR

Creativity Hope Ideas Inspirational Work
When it comes to atoms, language can be used only as in poetry.
NIELS BOHR

Language Poetry Science
In the great drama of existence we are audience and actors at the same time.
NIELS BOHR

Audience Existence Greatness Time
All rising curves that show unwelcome trends in human affairs will approach infinity if extended far enough, but it is we who dictate the curve and not vice versa.
NIELS BOHR

Enough Human Rise Science Vice
Every great and deep difficulty bears in itself its own solution. It forces us to change our thinking in order to find it.
NIELS BOHR

Change Difficult Force Greatness Ourselves Thinking
What is that we human beings ultimately depend on? We depend on our words. We are suspended in language. Our task is to communicate experience and ideas to others.
NIELS BOHR

Experience Human Ideas Language Ourselves Science Word
Our task is not to penetrate the essence of things, the meaning of which we do not know anyway, but rather to develop concepts which allow us to talk in a productive way about phenomena in nature
NIELS BOHR

Development Nature Ourselves Talk
If quantum mechanics hasn’t profoundly shocked you, you haven’t understood it yet.
NIELS BOHR

Science Understand Yourself
Some things are so serious, they can only be joked about.
NIELS BOHR

Funny Joke Science Serious
The measurement we get when we measure something is not a property of the thing measured.
NIELS BOHR

Measure Property Science
The present state of atomic theory is characterized by the fact that we not only believe the existence of atoms to be proved beyond a doubt, but also we even believe that we have an intimate knowledge of the constituents of the individual atoms.
NIELS BOHR

Believe Beyond Character Doubt Knowledge Science Theory

An expert is a man who has made all the mistakes which can be made, in a narrow field.

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An expert is a man who has made all the mistakes which can be made, in a narrow field.

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