When your techniques are rough it means you are forcing against the principles; proof that you are still immature. You will not be able to stand up to a stronger opponent — you must try to follow the principles. Your character comes out in your techniques. So do the habits of your mind. By correcting the techniques, you can correct the bad habits of your mind. If you constantly collide with others in your practice, your mind will develop a habit of clashing with other people.

49 - Ki Sayings (2003)