Niels Bohr: verschil tussen versies

|tekst= An expert is a person who has found out by his own painful experience all the mistakes that one can make in a very narrow field.

|taal= Engels

|opmerking= Ook vaak geciteerd als: ''"An expert is a man who has made all the mistakes which can be made in a very narrow field."'' Vertaling: '''"Een expert is iemand die alle fouten al gemaakt heeft in een zeer smal werkgebied."'''

|bron= [http://books.google.de/books?id=I1QEAAAAMBAJ&pg=PA62#v=onepage&q&f=false LIFE magazine 6 september 1954, pagina 62]