Perfection is achieved, not when there is nothing more to add, but when there is nothing left to take away.
Antoine de Saint-Exupéry
This quote reminds us that, after completing some work, we still need removing everything superfluous.
Have not found the origin of this quote. But it still calls me back once and again; both by its wisdom about perfection (excuse me if I confuse it with beauty), but also by the adventurous life of its author.