"An expert is a man who has made all the mistakes which can be made in a very narrow field." Niels Bohr #Marketing #Ondernemen https://t.co/KfeRruGqra

"An expert is a man who has made all the mistakes which
can be made in a very narrow field." Niels Bohr #Marketing #Ondernemen https://t.co/KfeRruGqra

— Y O O R S (@Yoorsonly) August 30, 2018

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