In Ivar Giaever's Nobel Prize http://www.youtube.com/view_play_list?p=82E4B92E3A753DDF. Interview produced by Alfred Leitner in 1982.
Ivar Giaever: Frases en inglés
Nobel lecture (1973)
In fact, I am convinced that often a newcomer to a field has a great advantage because he is ignorant and does not know all the complicated reasons why a particular experiment should not be attempted.
Nobel lecture (1973)