Interpret the Quotation: Ernest Rutherford

The famous physicist once remarked: "All science is either physics or stamp collecting." What do you think he meant by this? I'm thinking about using the quote in the new book to underscore two different views of science--a deductive approach based upon theory and a Baconian inductive approach based upon the collection of data--but I'm not sure if I'm interpreting Rutherford the right way....