MONAD, n. The ultimate, indivisible unit of matter (see Molecule). The monad has body without bulk, and mind without manifestation -- containing all the powers and possibilities needful to his evolution into a German philosopher . . .
Source: The Devil's Dictionary, 1911.
-- Ambrose Bierce, (Jun 24 1842-1914), US journalist, short-story writer; He was a noted wit, satirist and sardonic short story writer who disappeared while covering the Mexican revolution.