This is an old revision of the document!
詫び: tranquil simplicity from natural colours and forms, from natural materials such as wood, bamboo, earthenware. Human attempts to draw out the distinctive beauty of these materials. No decoration or showiness. Difficulty: Line between beauty and shabbiness.
さび: means rust or patina of age; beauty of passage of time. Abuse of daily use, and lovingly repaired, and impermanent. Reminds us of the cycle of life.
すき: subtle elegance + delight in the unusual. Originally, it meant heretical beauty. Around 1500, the aristocracy was also looking for new, original things, possibly leading to the rise of 詫び.