ARTHUR CONAN DOYLE

Holmes talks to Watson about everything.

The telling helps, Holmes says. "Nothing clears up a case so much as stating it to another person."

As Holmes tells Watson, “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.”

Attics have two components: structure and contents. Your memory attic should not be jumbled and mindless so that knowled...