Six diseases that a fighter can have

1. The desire for victory;
2. The desire to resort to cunning techniques;
3. The desire to display all that has been learned;
4. The desire to terrify the enemy;
5. The desire to be passive;
6. The desire to get rid of any evil that can affect you.

Bruce Lee describes the desire itself as a problem. Desiring is a bond, but so is the desire not to desire. To be detached, then, is to be free.