"There is a great difference between discoveries and inventions. With discoveries, one can always be ..." — Werner Heisenberg

After I had written a paper or letter for Bohr, I always had the impression that I had learned something which I could use for my own work. And somehow, I never felt that I had too little time for my own work. I always found time.

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

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.

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.