The great and golden rule of art, as well as of life, is this: That the
more distinct, sharp, and wiry the bounding line, the more perfect the
work of art.... Great inventors in all ages knew this: Protogenes and
Apelles knew each other by this line; Raphael and Michael Angelo, and
Albert Dürer, are known by this and this alone. The want of this
determinate and bounding form evidences the idea of want in the artist's
mind.
_Blake._