"In our case the project was a great risk because for more than fifty years the people had not succeeded to improve the electron optics in spite of severe efforts"
"The most important thing in science is to be together with a colleague at that moment when you discover something. When some little piece of nature unfolds and you see something new. "
"From now on, we work with positive tip voltage."
"Frankly most of the stuff we try just doesn't work"
"Roger, at Cornell University they have an incredible piece of scientific equipment known as the Tunneling Electron Microscope. Now, this microscope is so powerful that by firing electrons you can actually see images of the atom, the infinitesimally minute building blocks of our universe. Roger, if I were using that microscope right now, I still wouldn't be able to locate my interest in your problem. "
"Scientific inquiry starts with observation. The more one can see, the more one can investigate. Indeed, we often mark our progress in science by improvements in imaging. "
"You have to be absolutely patient, but suddenly one atom was sitting right in front of the tip and I got atomic resolution. That’s the way to success, not giving up."
"Nevertheless, this certainly was the cheapest electron microscope ever paid for by a German organization for the promotion of science. "