Chapter 6 contains several further examples of the play of opposites. For example,

One who takes position first at the battleground and awaits the enemy is at ease.
One who takes position later at the battleground and hastens to do battle is at labor.
Thus one skilled at battle summons others and is not summoned by them.

It also contains important teachings on form:

Rely on form to bring about victory over the multitude,
And the multitude cannot understand.
The elite all know the form by which I am victorious,
But no one knows how I determine form.
Do not repeat the means of victory,
But respond to form from the inexhaustible.