SPOCK: I am endeavouring, ma'am, to construct a mnemonic memory circuit using stone knives and bearskins.
[Canteen]
(Kirk and Spock are sweeping the floor, with the chairs stacked on the tables, and two men repairing clocks.)
SPOCK: Captain. Tools for finely detailed work.
(Later, a combination padlock is being opened by someone with very sensitive ears