In these Messenger Lectures on “The Character of Physical Law,” originally delivered at Cornell University Nov. 9-19, 1964, physicist Richard Feynman offers an overview of selected physical laws and gathers their common features into one broad principle of invariance.
He maintains at the outset that the importance of a physical law is not “how clever we are to have found it out, but…how clever nature is to pay attention to it,” and tends his discussions toward a final exposition of the elegance and simplicity of all scientific laws.