To throw an opponent to the ground is easy. To hit an opponent to injure is not hard either. But to bounce him off without hurting him, is very difficult.

Tirar a un oponente al suelo es fácil. Golpear a un oponente y lesionarlo tampoco es difícil. Pero enviarlo despedido volando sin lastimarlo es muy difícil.

Cheng Man Ching
Extracto de "The Tao of Taijiquan"
Published in 1985 by Sheng-lun Culture & Publishing Co., Taipei, Taiwan
ISBN 957-9273-02-2
Translated by David Chen, 1999