Acquaintance. A person whom we know well enough to borrow from, but not well enough to lend to.
Ambrose Bierceacquaintance, n.: A person whom we know well enough to borrow from, but not well enough to lend to.
Ambrose BierceScience is what we understand well enough to explain to a computer. Art is everything else we do.
Donald KnuthScience is what we understand well enough to explain to a computer; art is everything else.
Things a Computer Scientist Rarely Talks About