Stephen Hawking first appeared on the BBC in the 1977 documentary The Key to the Universe: The Search for the Laws of Creation | BBC Archive

"So remember to look up at the stars and not down at your feet. Try to make sense of what you see and wonder about what makes the universe exist. Be curious. And however difficult life may seem, there is always something you can do and succeed at. It matters that you don’t just give up. Unleash your imagination. Shape the future." - Stephen Hawking, Brief Answers to the Big Questions | Stephen Hawking