I consider that a man's brain originally is like a little empty attic, and you have to stock it with such furniture as you choose.
Source: Sherlock Holmes in A Study in Scarlet, ch. 2, 1887.
-- Arthur Conan Doyle, (May 22 1859-1930), Scottish author, physician; He created the detective Sherlock Holmes in A Study in Scarlet, 1887.