First, make sure you know what is right. Then diagnose your deviations. And then, correct them.CHEN XIAOWANG

I heard this from the Grandmaster in his Taijiquan (Tai Chi) seminar in Bariloche, Argentina, in 2009. He explains the method himself:

This is very important. Many people simply copy the Taijiquan (Tai Chi) form, and don’t correct their mistakes. When they teach, all their students do is make the mistakes bigger.CHEN XIAOWANG