• "All of physics is either impossible or trivial. It is impossible until  you understand it and then it becomes trivial."

         - Ernest Rutherford

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    "It is impossible to imagine a four-dimensional space. I personally find it hard enough to visualize a three-dimensional space!" 

         - Stephen  Hawking

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    "A person who never made a mistake never tried anything new."

         -Albert Einstein

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    "The first principle is that you must not fool yourself and you are the easiest person to fool."

         -Richard P. Feynmann

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    "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."

         - Margaret Geller  (Physicist/Cosmologist/Astronomer who maps out the large scale structure of the Universe)

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    "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."

         - Paul Dirac