Accustom your children constantly to this; if a thing happened at one window and they, when relating it, say that it happened at another, do not let it pass, but instantly check them; you do not know where deviation from truth will end
Samuel Johnson, James Boswell (1825). “The Table Talk of Dr. Johnson: Comprising Opinions and Anecdotes of Life and Literature, Men, Manners, and Morals”, p.55