"Lightness is the consequence of impulsion and collection." (Nuno Oliveira, 1998)
"The relaxation of the mouth is not enough. It can be deceptive, because it does not necessarily lead to lightness. It has to be accompanied by the relaxation of the entire horse. When he yields with his back, it will definitely have repercussions in the mouth."
(Nuno Oliveira, 1998)