It used to drive me crazy when I made mistakes in my knitting. I wanted things to come out perfect, whatever that means, and was disappointed when they didn't. Years ago someone, I can't recall who, told me that weavers of Persian carpets always intentionally include a mistake in their carefully constructed designs "because only Allah is perfect." Once I knew that, I could more easily accept my own mistakes, and I began to look for these intentional imperfections in other objects I came across.

Susan Gordon Lydon, The Knitting Sutra