FOOL, n. A person who pervades the domain of intellectual speculation and diffuses himself through the channels of moral activity.

FOOL, n. A person who pervades the domain of intellectual speculation
and diffuses himself through the channels of moral activity. He is
omnific, omniform, omnipercipient, omniscience, omnipotent. He it was
who invented letters, printing, the railroad, the steamboat, the
telegraph, the platitude and the circle of the sciences. He created
patriotism and taught the nations war -- founded theology, philosophy,
law, medicine and Chicago. He established monarchical and republican
government. He is from everlasting to everlasting -- such as
creation's dawn beheld he fooleth now. In the morning of time he sang
upon primitive hills, and in the noonday of existence headed the
procession of being. His grandmotherly hand was warmly tucked-in the
set sun of civilization, and in the twilight he prepares Man's evening
meal of milk-and-morality and turns down the covers of the universal
grave. And after the rest of us shall have retired for the night of
eternal oblivion he will sit up to write a history of human
civilization.
-- Ambrose Bierce, "The Devil's Dictionary"