Although it was inevitable that Ursula K. Le Guin would go, it seems impossible to many that she has left us. No matter the form or the subject, Le Guin’s prolific output displayed a consistently high level of quality and gracefulness. Whether writing for children or adults, Le Guin, who died Monday at 88 in her sleep in Portland, Ore., always did so with precision, in language capable of cutting through pretense.