Feynman، Richard Phillips؛ Leighton، Robert Benjamin؛ Sands، Matthew Linzee (1963). The Feynman Lectures on Physics. ص. 1. ISBN:978-0-201-02116-5.. Feynman begins with the نظرية ذرية, as his most compact statement of all scientific knowledge: "If, in some cataclysm, all of scientific knowledge were to be destroyed, and only one sentence passed on to the next generations ..., what statement would contain the most information in the fewest words? I believe it is ... that all things are made up of atoms – little particles that move around in perpetual motion, attracting each other when they are a little distance apart, but repelling upon being squeezed into one another. ..." vol. I p. I–2
