I have been very lucky to have won the Nobel Prize twice. It is, of course, very exciting to have such an important  1  of my work, but the real pleasure was in the work itself.

   Scientific research is like an exploration of a voyage of discovery. You are  2 trying out new things that have not been done before. Many of them will lead  3 and you have to try something different, but sometimes an experiment does  4 and tells you something new and that it is really exciting.  5  small the new finding may be, it is great to think "I am the only person who knows this" and then you will have the fun of thinking what this finding will  6  and of deciding what will be the  7  experiment.

   One of the best things about scientific research is that you are always doing something different and it is never  8 . There are good times when things go well and bad times when they  9 . Some people get discouraged at the difficult times, but when I have a failure my policy has always been not to worry but to start planning the next experiment,  10  is always fun.