“In 1924, I became a Dozent in Gottingen and worked out the quantum mechanics during a holiday stay on Heligoland.”

I believe this uranium business will give the Anglo-Saxons such tremendous power that Europe will become a bloc under Anglo-Saxon domination. If that is the case, it will be a very good thing. I wonder whether Stalin will be able to stand up to the others as he has done in the past.

Every word or concept, clear as it may seem to be, has only a limited range of applicability.

Sometimes a poor performance is better for enjoyment, because you can look at those things that were wrong and analyze them.

The end of the First World War had thrown Germany’s youth into great turmoil. The reins of power had fallen from the hands of a deeply disillusioned older generation, and the younger ones drew together in larger and smaller groups to blaze new paths or, at least, to discover a new star to steer by.

If the lecture is good, then everything is too smooth. That’s the same in music: if the performance is too good, you really don’t enjoy it, because it just goes by, and you can never penetrate into the heart of it.

If we made atomic bombs, we would bring about a terrible change in the world. Who knows what would happen from this?

If this were the whole truth, we should, when entering into a new field, introduce only such quantities as can directly be observed, and formulate natural laws only by means of these quantities.

It is generally believed that our science is empirical and that we draw our concepts and our mathematical constructs from the empirical data.

Reports in Washington show that our reasoning was just like that of your physicists.

In America, it was decided to attempt the production of atomic bombs with an effort that would constitute a large part of the collective American war effort.

The solution of the difficulty is that the two mental pictures which experiment lead us to form – the one of the particles, the other of the waves – are both incomplete and have only the validity of analogies which are accurate only in limiting cases.

The problems of language here are really serious. We wish to speak in some way about the structure of the atoms. But we cannot speak about atoms in ordinary language.

I think that if a United States of Europe were to be formed, it would be in our interests to fight for it, as all our old traditions would remain in such a united Europe, whereas if we were to start now as part of the Russian Empire, everything that had ever been in Germany would disappear.

Bohr’s influence on the physics and the physicists of our century was stronger than that of anyone else, even than that of Albert Einstein.

The single life is bearable to me only through my work in science, but for the long term, it would be very bad if I had to make do without a very young person next to me.

Whoever dedicates his life to searching out particular connections of nature will spontaneously be confronted with the question how they harmoniously fit into the whole.

The people at the top of the league think they need to rein me in so I don’t become another Michael Jordan, somebody they aren’t able to mold and shape and make their puppet.

The English language on her tongue became a smoke-screen, without her eyes changing expression in the least.

Every vice was once a virtue, and may become respectable again, just as hatred becomes respectable in wartime.

There are three reasons for becoming a writer: the first is that you need the money; the second that you have something to say that you think the world should know; the third is that you can’t think what to do with the long winter evenings.

Becoming rich isn’t as much about getting rich financially as about whom you become, in character and mind, to get rich. I want to share a secret with you that few people know: the fastest way to get rich and stay rich is to work on developing you!

Every compulsion is put upon writers to become safe, polite, obedient, and sterile.

I think I became my own stylist by not knowing any better.

I didn’t become a Tory just to become part of a managerial group who wanted to run the country…