Ursula K. Le Guin interview

My world is all I have to make my stories from, my people are the only people I know. But by making up worlds and peoples, I can recombine and play with what we have and are, can ask what if it were like this instead of like this—What if nobody had a fixed gender, as on the planet Gethen? What if marriages, instead of two people and one couple, consisted of four people and four homo- and heterosexual couples, as they do on the planet O? If nobody in a world had ever waged war, how would people and daily life in that world differ from ours, and in what ways?