Perfectionism is not the same thing as striving for excellence. Perfectionism is not about healthy achievement and growth. Perfectionism is a defensive move. It's the belief that if we do things perfectly and look perfect, we can minimize or avoid the pain of blame, judgment, and shame. Perfectionism is a twenty-ton shield that we lug around, thinking it will protect us, when in fact it's the thing that's really preventing us from being seen.
-- Brene Brown, Daring Greatly, p. 128-129