At any one time there is a natural tendency among physicists to believe that we already know the essential ingredients of a comprehensive theory. But each time a new frontier of observation is broached we inevitably discover new phenomena which force us to modify substantially our previous conceptions. I believe this process to be unending, that the delights and challenges of unexpected discovery will continue always.


Nobel Prize Autobiography (1981).


At any one time there is a natural tendency among physicists to believe that we already know the essential ingredients of a comprehensive theory. But ...

At any one time there is a natural tendency among physicists to believe that we already know the essential ingredients of a comprehensive theory. But ...

At any one time there is a natural tendency among physicists to believe that we already know the essential ingredients of a comprehensive theory. But ...

At any one time there is a natural tendency among physicists to believe that we already know the essential ingredients of a comprehensive theory. But ...