I had a strong sense of responsibility, I wanted to be flexible also, and I just worshipped knowledge and spared no pains to do the job very well. And an enormous amount of perseverance. I learned that on the farm, you see. And I guess those are the qualities that got me there. You carry on through even despite of discouraging situations and you never lose sight of the goal. Often, you experience hardships involved like freezing in that cold dome at night, loss of sleep, and that gets pretty wicked, but I was interested in getting the results. It takes a dedication to achieve that kind of thing. A lot of people would give up and quit.