"The problem of making a nuclear reactor is not a problem of physics, but a problem of engineering."

"The universe is a strange and wonderful place, and we are only beginning to understand it."

"Before I came here I was not only a little confused about the subject, but also had some doubts about my confusion."

"It is not good to try to stop knowledge from going forward. Ignorance is never better than knowledge."

"I believe that science is the key to understanding the universe, and to solving the problems of humanity."