Clyde Tombaugh 5

You credit your success to perseverance. What do you mean by that?

Clyde Tombaugh: 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.