. _:rQhdiDcf831. . . . . . "Nobody knows what the cause is, though some pretend they do; it like some hidden assassin waiting to strike at you. Childless women get it, and men when they retire; it as if there had to be some outlet for their foiled creative fire."@en. "Source: Freebase - The World's database". _:rQhdiDcf831 "5273". _:rQhdiDcf831 .