Via The Wisdom of the Hands, this from Ursula K. LeGuin’s Always Coming Home:

It was a good thing for me to learn a craft with a true maker. It may have been the best thing I have done. Nothing we do is better than the work of handmind. When mind uses itself without the hands it runs the circle and may go too fast; even speech using the voice only may go too fast. The hand that shapes the mind into clay or written word slows thought to the gait of things and lets it be subject to accident and time. Purity is on the edge of evil, they say.