"The universe is a grand experiment, and we are all part of it."

"I am grateful for the opportunity to have contributed to the advancement of science, and to have witnessed the birth of the atomic age."

"The world is full of wonders, and it is our job to explore them."

"The history of science is full of examples of people who thought they knew everything, and then discovered that they knew very little."

"The greatest discovery yet to be made is the discovery of what we do not know."