Catherynne M. Valente said this quote

Fate is a woman, I said to them. In fact, she is three women. Young, like us, so that they will have the courage to be cruel, having no weight of memory to teach temperance. Young, but so old, older than any stone. Their hair is silver, but full and long. Their eyes are black. But when they are at their work they become dogs, wolves, for they are hounds of death, and also hounds of joy. They take the strands of life in their jaws, and sometimes they are careful with their jagged teeth, and sometimes they are not. They gallop around a great monolith, the stone that pierces our Sphere where the meridians meet, that turns the Earth and pins it in place in the world. It is called the Spindle of Necessity, and all round it the wolves of fate run, and run, and run, and the patterns of their winding are the patterns of the world. Nothing can occur without them, but they take no sides. I could also say that there is such a stone, such a place, but the dogs who are women died long ago, and left the strands to fall, and we have been helpless ever since. That in a wolfless world we must find our own way. That is more comforting to me. I want my own way, I want to falter; I want to fail, and I want to be redeemed. All these things I want to spool out from the spindle that is me, not the spindle of the world. But I have heard both tales.