1889-1951 1902-1994 1924 1924-1994 501 biography calabrese congresses feyerabend history imre informers irrationalism(philosophy) kuhn lakatos leonhard ludwig measurement organizedcrime paradigm(theoryofknowledge) pascal paul paulk philosophy popper q175f968t2000 q175s889p1982 rationalism science skepticism socialsciences unitedstates wittgenstein