Standard Sao Chung Yung Chung; Yee Cook Tung Kung Guard the center and attack from the centre, both methods are equally important. Traditional Writing: 守中用中 異曲同工. http://wingchunlexicon.com/wp-content/uploads/2017/01/SAU2-ZUNG1-YUNG6-ZUNG1-JI6-KUK1-TUNG4-GUNG1-_mdash-Wing-Chun-Elements_-Glossary.mp3