The Left Hand of Darkness (Hainish Cycle, #4)

by Ursula K. Le Guin

In this curious lack of distinction between the general and specific applications of the word, in the use of it for both the whole and the part, the state and the individual, in this imprecision is its precisest meaning.

To learn which questions are unanswerable, and not to answer them: this skill is most needful in times of stress and darkness.