A Treatise on Painting
by Leonardo da Vinci, translated by John Francis Rigaud
Of the Postures of Children
4004152A Treatise on Painting — Of the Postures of ChildrenJohn Francis RigaudLeonardo da Vinci

Chap. CVIII.Of the Postures of Children.

Children and old people are not to express quick motions, in what concerns their legs.