Videos can be accessed here. Please note: none of the links are currently active. I will make the videos available as I sign them.
"All of physics is either impossible or trivial. It is impossible until you understand it and then it becomes trivial."
"It is impossible to imagine a four-dimensional space. I personally find it hard enough to visualize a three-dimensional space!"
A person who never made a mistake never tried anything new.
The first principle is that you must not fool yourself and you are the easiest person to fool.
"When people on airplanes ask me what I do, I used to say I was a physicist, which ended the discussion. I once said I was a cosmologist, but they started asking me about makeup, and the title 'astronomer' gets confused with astrologer. Now I say I make maps."
"In science one tries to tell people, in such a way as to be understood by everyone, something that no one ever knew before. But in poetry, it's the exact opposite."